James G. Hart: Hedwig Conrad-Martius’ Ontological Phenomenology

Hedwig Conrad-Martius’ Ontological Phenomenology Book Cover Hedwig Conrad-Martius’ Ontological Phenomenology
Women in the History of Philosophy and Sciences, Vol. 5
James G. Hart. Rodney K. B. Parker (Ed.)
Springer
2021
Softcover 67,59 €
XII, 272

Reviewed by: Matthew Clemons (Stony Brook University)

As James G. Hart notes in the opening chapter of his Hedwig Conrad-Martius’ Ontological Phenomenology, the German phenomenologist and Naturphilosophin Hedwig Conrad-Martius is a marginally known figure. Prior to the last half decade, what limited consideration she received in the English-speaking world is primarily in the context of her relationship with Edith Stein, particularly in the role that she played in Stein’s conversion to Catholicism in the early 1920s. There are several plausible reasons for Conrad-Martius’ obscurity: the absence of translations of her work; the political and bureaucratic challenges and sometimes outright opposition she encountered as one of the first women to enroll in and complete studies at a German university; the personal and professional hardships—including the death of numerous colleagues and a publication ban due to Jewish ancestry—that resulted from the socio-political upheavals of the early 20th century; the ascendency and predominance of the hermeneutical-existential mode of phenomenology to the exclusion of phenomenological realism movement of which she was a leading figure. Whatever the reasons for her obscurity, the quality of her work is certainly not one of them, even a passing familiarity with which would confirm.

I am the sort of reader of Hart’s monograph on Conrad-Martius that qualifies as having passing familiarity with her work. I know enough about her lifelong project, the Realontologie, or the investigation into the essence and metaphysical foundations of reality, to want to know more. But resources for knowing more are limited. A cursory search of the Kösel-Verlag archives, the publisher now owned by Penguin Random House that originally printed Conrad-Martius’ work, yields no results. To the best of my knowledge, her work is no longer in print and only available only second-hand via private handlers. There are no translations. As far as secondary material, at the time of its publication in 2020, Hedwig Conrad-Martius’ Ontological Phenomenology was the only extended treatment of Conrad-Martius’ thought available in English. According to Hart, the only other monograph, which is in German, is Alexandra Pfeiffer’s Hedwig Conrad-Martius: Eine phänomenologische Sicht auf Natur und Welt. A monograph on Conrad-Martius, then, is a welcome contribution. A monograph on Conrad-Martius by James Hart is even more so. Hart’s work is consistently of the highest level, combining an immense scholarly and philosophical comprehensiveness with clarity and a sharp eye for the germane in the matter-at-hand. His two-volume work Who One Is (Springer 2009) is an absolute gem, a must-read for anyone interested in any number of themes even remotely related to transcendental and existential phenomenology. Needless to say, I anticipated Hedwig Conrad-Martius’ Ontological Phenomenology with excitement, and it mostly met those expectations.

The book itself is composed of eight chapters and an appendix. The appendix is a selection translated by the book’s editor Rodney K.B. Parker of HCM’s unfinished and eventually abandoned manuscript Metaphysik des Irdischen (or Metaphysics of the Earthly). Hart tells us that she originally intended the work to be a “unifying opus magnum” (4), but that it remained incomplete due to extenuating health and financial circumstances. Parker implies that disagreements with the publisher were also a contributing factor. As for the body of the book, chapter one is a general introduction to Conrad-Martius’ life and thought, presenting relevant biographical material and acquainting us with her project and its primary influences; the final chapter is a conclusion. Chapters two through five contain the bulk of the exposition of Conrad-Martius’ thought and are the most challenging of the book. Chapters six and seven are Hart’s own creative appropriation of one of the basic theses of Conrad-Martius’ work, namely that theological-cosmological categories have an ontological-metaphysical referent, which he applies to the theme of heaven. In what follows, I’ll summarize (by no means exhaustively) Hart’s presentation of Conrad-Martius’ thought and conclude with a few reflections on the work and on its contemporary relevance.

Conrad-Martius as Naturphilosophin

All of the subsequent analysis depends on Hart’s exposition of Conrad-Martius’ thought. HCM is a philosopher of nature in the ancient sense. Her notion of nature as “reality under the aspect of its radical ‘basic motion’ of self-genesis” (80) reflects a more typically Aristotelean designation: nature as “that which by virtue of itself…and out of itself (the founding hyle) brings forth itself (its eidos and morphé)” (80). She employs familiar philosophical notions such as substance, potency, and entelechy, and makes use of well-known medieval distinctions like that between essence and existence. HCM asks typically natural-philosophical questions: what is time; what is space; what is mass? What are the constitutive features of matter or of light? How do we conceive of the phenomenon of organic life on both a macro and micro scale? Her work demonstrates deep familiarity with the natural sciences of her day and with the revolutionary 20th century developments in, e.g. physics. There are, however, at least two features of her general approach that make it unique: 1) her commitment to eidetic-phenomenological analysis; 2) her fundamentally Christian cosmological outlook.

1) In chapter two, Hart details Conrad-Martius’ involvement in the early phenomenological movement and its effect on her methodological and philosophical commitments. HCM was a member of the Munich and Göttingen circles of phenomenology. Members of these circles had in common an admiration for Husserl’s rejection in the Logical Investigations of philosophical psychologism and the overcoming of epistemological standstills and reductivism of all kinds that it represented. Freed from these concerns, they were able to take up Husserl’s exhortation to return to die Sachen selbst and embody his vision of a community of interdependently working researchers conducting investigations into the essential features of the various regional ontologies. For Conrad-Martius, a philosophy of the region of nature meant, as stated above, investigating nature in an effort to discover its essential sources and structures.

Aiding this task was the method of the eidetic-reduction in which the existence of an actual object (but not the world as such) is bracketed so as to investigate the object via ideation, a process of imaginatively altering an object to bring its essential structures into relief (cf. section 2.2.). For Conrad-Martius, this involved a second aspect, namely a horizon analysis in which the limiting presuppositions and prejudices that predetermine what counts as legitimate are brought to light. In relation to the natural sciences, the general interpretive framework tends to be one of quantification and mathematization.

As an aside on method, the early phenomenologists were as a rule not concerned with epistemological questions. They unanimously lamented Husserl’s “transcendental turn” and his forays into the subjective sources of meaning as a regression into the bogs of critical philosophy. One of the merits of Hart’s presentation of HCM’s method is his pointing out the challenges that the products of Husserl’s genetic investigations, particularly the role of temporality and history in the constitution of meaning, present for her conception of essences and the kosmos noétos. For more on this, see sections 2.4-2.6.

Phenomenology’s insistence on attending to the thing in the fullness of its appearance produced, according to Hart (10), the fundamental convictions in Conrad-Martius that the way in which nature appears is reflective of what it is. There can be no irreconcilable conflict between what appears and the way it appears. This means, “on the one hand, that there was no abyss between nature as it appears and the positions of the physical sciences, and, on the other hand, that appearing is, as such, not a veil of some unknown ‘in itself’” (53). Given, for instance, the developments in quantum physics that contest the more intuitive conceptions of matter found in classical, Newtonian physics, this is quite the radical thesis. But the thesis also represents a break from the temptation of dividing nature’s appearing into primary qualities, or the real features of the physical, and secondary qualities, or sensible, merely mental features, as a consequence of which the secondary qualities are dismissed as irrelevant and the primary are conceived of inertly and mathematically. Against this quantification of nature, Conrad-Martius insisted on a qualitative analysis in which all modes of appearing are appearances of something. Conrad-Martius’ nature is a cosmology, an ordered whole of interwoven regions and parts that Hart compares to a tapestry or symphony (157).

2) If the predominant horizon of the natural sciences is quantification and mathematization, HCM’s is Christian. One of the dominant trends in the theology of her day was demythologization in which “the content of the ontological referent [of cosmological notions] is fully replaced by an existential and symbolic interpretation” (205). In contrast to this tendency, Conrad-Martius sought to “remythologize” the cosmos, i.e. to affirm a cosmological meaning and referent for Christian cosmological notions, for example, heaven as a region of world space (see 7.3). Hart quickly adds two qualifications: a) that this doesn’t mean that we should altogether reject the fruits, much less the impulses and motivations, of existential and hermeneutical theology; b) that this in no way implied for Conrad-Martius a fundamentalism that eschews the evidence of, e.g. paleontology, and seeks to return to the pre-Copernican picture of a storied-universe of heaven physically above. As I mention above, chapters six and seven contain Hart’s attempt to appropriate this move with regard to heaven. While the content of these chapters is undeniably interesting, it seems to me disproportionately focused on existential and hermeneutical meanings of the religious cosmological categories. This is an issue only insofar as the Hart’s main objective is to show that Christian cosmological notions can be interpreted cosmologically.

In accordance with these two unique features of Hedwig Conrad-Martius’ approach, Hart seems to discern two promises: 1) a qualitative philosophy of nature that is the product of essence-investigations and integrates the developments of the natural sciences into an overarching cosmological unity which leads to 2) the possibility of giving Christian cosmological notions an ontological-cosmological foundation rooted in a serious philosophy of nature.

The Realontologie at a Glance

A. Substantiality and Time: If chapter two delineates Conrad-Martius’ method, chapters three through five deal with her thought as such. Chapter three begins with an analysis of the various kinds of being that culminates in the decisive distinction between ideal and real being. This distinction is the point of departure for the Realontologie, or ontology of the real, and for the philosophy of nature insofar as nature is, as we saw, “reality under the aspect of its radical ‘basic motion’ of self-genesis.” The section in which the distinction is introduced (3.2) is a bit convoluted. I get the impression that Hart has here the unenviable task of mapping out the critical theme that is at once the juncture of several intersecting trains of thought and the point of departure for the whole show. Probably for this reason, the terms of explanation seem to shift just as you begin to get your teeth into them. It can feel a bit like biting air. At any rate, the gist of the distinction is clear enough. Whereas “the ‘being’ of ideal objects is exhausted totally in their ‘being something’ or being such” (66)—in more traditional metaphysical parlance, in their essence—real being exists. Inherent in the meaning of real being is not just the essential moment (what something is) but also the existential moment (that something is) without which a real being would not be real. By existence, HCM seems to mean the brute thereness, the in-the-flesh character of facticity. This leads her to the notion of substantiality, which for her refers to being that is self-grounding. A being exists, is “really there” because it stands in itself. Substantial being, for Conrad-Martius, is real being.

To be self-grounded is sometimes characterized as standing-in-itself, and other times as stand-under-itself: “Substance as such stands under its own being; it is the self-grounding of itself which is the standing under (sub-stans). It stands under (grounds) itself…Substance is a being’s standing in its own existential potency to its own being” (79). Although it seems like an unintentional equivocation or an exploitation of the etymology of substance, it is actually a purposive and important equivocation. It takes some rearranging to figure out why. As far as I can tell, “itselfness” is for Conrad-Martius both a technical term and an operative concept, the meaning of which changes depending on context. Hart confirms the latter (cf. 78) and implies the former. I note that one of the difficulties with the use of “itselfness” as a technical term, beyond its being an operative concept, is the possibility of its conflation with the reflexive pronoun “itself.” This is probably less of an issue in the original German.

One of the meanings of “itselfness” in the case of real being is “the potency to exist, to be or not to be.” What makes a being “stand-in-itself” is its having “itselfness” (technical sense) within itself (this second use of “itself” has a slightly different meaning), i.e. it has within itself the potency to be or not to be. But “itselfness,” insofar as it means the potency to exist, grounds or is the source of the actually existing being. The formulations standing-it-itself and standing-under-itself foreground different aspects of substantiality. The second is crucial. Insofar as the potency to be “stands under” an entity, the theme of potentiality as the real, but not actual source of actual being is emphasized. It is that from which real, actual being comes to be. Moreover, it implies that the actually finished being, insofar as it is potential, precedes itself. Potential being is not finished being; it is pre-finished being. This leads to the central question for Conrad-Martius of the “place” of these potencies themselves. If the cosmos is an ordered whole with various kinds of regions, we here have an indication of what one of the regions would be. In short, in the analysis of real being, we are led to substantiality. The essence-analysis of substantiality leads us to the notion of pre-actual potential sources that generate and sustain actual being. Investigating these sources is the project of the Realontologie. As Hart puts it, “for the full constitution of real substances, the form-giving active (entelechial) and passive, purely potential powers must be studied” (47)—I’ll say more about the “form-giving active powers” in the next subsection.

For Conrad-Martius, that an entity is grounded in its possibility to be does not mean that it has absolute power over its potential to be. Such a capacity belongs only to absolute being. Insofar as potential being is a form of non-being, she can say that to be real is to be suspended over an abyss of nothingness that requires an ontological motion of “incessant flight from nothingness” (70). Its existence is something which is incessantly “slipping away” (78) and simultaneously won anew. This is an important observation because, for Conrad-Martius, this motion inherent in the mode of existence of real being is that which constitutes time. Time is not some pre-existing container into which being steps. Time follows on existence and not the other way around. As Hart puts it, “time is a mode of the existence of something” (137). Again, “time is a dimension corresponding to the being or existence of something” (150). In contrast to this real-motion of time is what she refers to as the transcendental imaginative time—think Husserl’s time-consciousness in which the present is held onto in retention and on the basis of this holding arises protention, an expectation of what is to come. In this context, it makes sense to speak of past and future and of a motion between the two through the present. For HCM, this flowing time along with the categories of past and future are not real, but only features of transcendental imaginative time. The real motion of time is not one from the past into the future or vice versa. Just as a being is incessantly losing and winning its existence, the real motion of time is a discontinuous “relentless coming forth of the world into being as it is a constant vanishing from actuality” (76). An analogy with number is helpful:

The number, e.g., 5, means more than that it stands in line at the fifth place after preceding rows of unities. The eidos of the number lies in its being a complex unity which contains the total series of numbers leading up to its place of order. Only secondarily does it indicate its place of order in the series of numbers. The number is the expression of a quantitative monad-like ‘sum value.’ One value cancels out the preceding by including it and going beyond it [Aufhebung]. Conrad-Martius’ point here is that the nows are analogous to numbers. And as numbers are monadic sum-values, so are the moments of actuality monadic being-values. And as with each individual number the preceding (and coming) numbers are conceptually and terminologically negated, because this number presents a sum-value which is valid only for it, so with each definite moment of actuality [Aktualitätsjetzt] are all other moments ontologically negated. (77)

Theologically, that real being is situated on the “knife-edge of nothingness” (190) is indicative of nature’s being non-integral, i.e., being fallen. If incessantly negated time follows on the mode of real existence, HCM speculates on what a different mode of “eternal” or “blessed” existence might mean for time (see section 5.1 and 5.3). As for the question of the source of this motion, Hart returns to it in chapter five.

B. Matter (hyle) and Space: I noted above that “itselfness” seems to be an operative concept. Beyond referring to the potency to exist that underlies real being, it also seems to refer to the potency for an entity to be what it is, to be its essence, which it also stands in. The “‘basic motion’ of self-genesis” by which Conrad-Martius delimits the region of nature would then signify that substantial being both stands in its possibility to exist and has its potency within itself to be what it is. This sheds light on obscure locutions like nature’s definition as “that which is by reason of its own power to be—to be itself. That is, to be what it is in its own essence” (80), which Hart follows up by quoting HCM as saying “existential substantiality is essential substantiality” (again, the major difficulty with these locutions seems to be that the terms shift, e.g. if we say that something constitutes itself out of itself, we could mean several different things (out of its hyle, out of its potency to be, etc.), and all of them might highlight different aspects of constitution. This is probably a difficulty inherent in ontology).

This consideration prepares us for Hart’s remark that there are two different modes of standing-in-itself that are constitutive of the cosmos, the hyletic and the pneumatic. As constitutive of actual, finished entities, Hart cautions us against thinking of these modes themselves as actual, finished entities. Again, the notion of regions is not far. Conrad-Martius refers to the region of these potentialities that are the source of actual entities as the trans-physical potential realm (see section 3.5). In some sense, the distinction between the hyletic and the pneumatic seems to cut along the lines of living and non-living, although pneumatic in the strict sense refers to “the eidos of I-ness” (section 3.7)). Two qualifications are necessary: 1) we are talking about the sources of living and non-living beings, and so not of a living or non-living being. The basis for, e.g. the essence-analysis of matter is not empirical matter (e.g. the chemical elements). 2) It would be wrong to think of matter along the lines of dead, brute stuff. As Hart insists, finished material being like all nature is self-generative. The difference between living and non-living is more that essences of living beings are uniquely delivered over to them to become (88). The analysis of organic nature occupies much of the beginning of chapter four, which unfortunately I can’t consider further here. That discussion treats HCM’s position in debates within biology between wholism and preformism, her understanding of evolution and genetics, and the important concept of entelechy and related notions of causality, power, and energy. If interested, see sections 4.1-4.4.

Whereas not all finished entities share in pneumatic substance, all of nature participates in hyletic being (83). According to Conrad-Martius, there are two paradoxical but intertwined moments of material being. One is an ecstatic self-othering such that nothing remains behind; the other is an absolute sinking inwards. The first is a potency that “inexhaustibly releasing or scattering, the other is inexhaustibly sinking or centering” (102). The two are intimately bound together in a reciprocal relationship such that Hart can dub hyle a “selfless being-burdened-with-itself.” The primary reason for highlighting this distinction here is the important role that it plays in the context of several other discussions. It is crucial for her interpretation of quantum physics and the notion of aether (section 4.5), is generative of her conception of space, and representative of the various metaphysical regions of the cosmos. The treatment of space begins with a modified version of the Kantian antinomies. For her, the problem of infinite space—that I can neither conceive of space as ending nor of it as endless—is a product of the transcendental given-along-with of the milieu in perception. But it does indicate a paradox in the act of making space, namely that of how the untraversable because immeasurable, what HCM calls the apeiron, becomes traversable and measurable, or turns into metric space. I think what she is getting at is the problem of how, without a pre-existing definite dimension, a being comes to have definite dimensions. The solution is similar to the one we saw in the case of time. Just as time follows upon the mode of existence of a being, space follows upon the kind of being that something is (e.g. 182). More specifically, “space is the dimension created by hyletic being in its substantial self-transcendence” (84). Hart points out that the German verb räumen, the nominative of which [Raum] is German word for “space,” can mean to clear out or to make room, which is the fundamental meaning of space as the dimension that follows outwardly upon the ecstatic self-othering and inwardly on the sinking inwards of hyletic substance (85). For more, see section 3.8.

C. The Fundamental Structures: The Aeonic World-Periphery and World-Center. I have outlined HCM’s position that time follows on the mode of existence of a thing and space on the kind of being something is. I have pointed to the notion of “itselfness” as the potential for a being to be (existence) and to be what it is (essence), and have indicated that in each case, the question of sources, structures, and regions is not far. All of these topics together led to what is maybe the central topic of HCM’s philosophy of nature, namely the pre-finished sources, both actual and potential, that are responsible for nature’s coming to be and the regions that they inhabit. In chapter four (4.4), Hart treats the notions of causality and the relationship between actuality and potentiality. Central to the notion of causality is that the cause must be proportionate and appropriate to its effect. Otherwise, the effect can never come about. One of the ways in which a cause is proportionate to its effect is that in order to be capable of setting the power into motion, it must itself be in motion. This rehashes the ancient doctrine of actuality and potentiality. The question then arises: whence these trans-physical, trans-empirical pre-finished actualities that set the corresponding potentialities into motion such that we have, e.g., the motion of time, the paradoxical duality of matter, the generation of particular entities? Whence the potencies themselves? As Hart puts it, “a question that is at the heart of the cosmology and ontology of Conrad-Martius: What is the ontological place or point from out of which substantial being or the whole of nature unfolds itself into the essential forms of the cosmos? This is not meant to be a genetic question within or previous to finished nature. It is a question about essential structures” (80).

There is no way to do this question justice here. It’ll have to suffice to indicate in broad strokes the architecture of these regions. It’s worth saying again that the notion of “region” is metaphorical. The structures of finished nature are not themselves finished nature, and so are not 3D. Generally, all motions require an actualizing feature and a hyletic ground on, in, and through which to act. The motion of nature’s self-genesis with all of the other motions that this implies is no difference. For this, HCM conceives of two foundational regions (which correspond to matter’s ecstatic and instatic moments) of the world-center and the world-periphery. The world-periphery is the place of the essence-entelechies that actualize the world, as well as the ever actual source of the real motion of time (there is an interesting parallel here to Aristotle’s prime mover). The world-center, on the other hand, is the hyletic dimension on which the actualizing powers act. With the notions of regions, we come back to the theological promise I pointed to in the previous section, namely, that of finding ontological referents for Christian cosmological notions. Related to these regions are, for example, referents for the notion of the New Heaven and New Earth. This is a crude sketch of the cornerstone of HCM’s thinking, but it’ll have to do here. See chapter five for more.

Concluding Remarks

The remarks of the last section are by no means exhaustive, but give an overview of the major themes of Conrad-Martius’ thought as Hart presents it, which the interested reader should be able to use for orientation in the book. While I get the impression that Hart faithfully portrays Conrad-Martius’ thought, and while I don’t envy the task of summarizing the life’s work of a metaphysician, there are a few facets of the book that are underwhelming. As I indicated at points in the previous section, Hart’s exposition can be hard to follow. In a certain way, this is unavoidable. Part of the difficulty lies in becoming acquainted with HCM as a thinker, any evaluation of whom demands a thorough familiarity with the natural sciences. It’s also necessary to get used to her idiosyncratic terminology. In another way, however, there are sections in which terms are confusing, formulations are exchanged without explanation, and the explanandum sometimes seems to drop out of sight. It is not always clear when Hart is paraphrasing or providing commentary, so it can be difficult to parse out exactly what his contribution is verses what a given thinker is arguing (though I stress that materials are always adequately cited). I suspect that this is the culprit behind errors such as the one in the first full paragraph on pg. 11 in which the example changes halfway through from “cabinet” to “table.” On that note, there are numerous and frequent typographical errors that, because of their frequency, can be distracting. For stretches of the book, errors in punctuation occur on nearly every page and sometimes multiple times per page. One of the most frequent errors, substituting the word “or” when the context calls for “of,” occurs four times in the concluding five sentences of the book. Hart tells us in his preface that the book is the belatedly published version of his 1972 doctoral thesis and that, for practical reasons, he couldn’t update it. Many of these errors I think, are reflective of that.

At any rate, I am grateful to have the dissertation in published form. I mentioned at the beginning of this review that HCM is a marginally known figure, and that at the time of its publication it was the only extended treatment of Conrad-Martius’ thought in English. If the last few years are any indication, the situation is changing. Since the publication of Hart’s book, the Springer Series Women in the History of Philosophy and Sciences, of which Hart’s work is the fifth volume, has published another book-length collection of essays by Ronny Miron on Conrad-Martius’ thought.[1] The Center for the History of Women Philosophers and Scientists at the Universität Paderborn whose director, Ruth Hagengruber is an editor for the Springer Series, is conducting a project called “Women in Early Phenomenology,” one of the goals of which is to foreground and make available Conrad-Martius’ oeuvre.[2] There is also, of course, anecdotal evidence—a panel dedicated to her thought at a prominent conference, a reading group dedicated to her work, etc.—of an increasing interest.

Can her work gain broad traction? Hedwig Conrad-Martius is as unconventional a thinker as she is comprehensive and profound. As far as I know, she is the only western philosopher of the 20th century (besides maybe Whitehead) to attempt in conversation with the natural sciences a comprehensive philosophy of nature in terms of its essential structures. We may have to go back as far as St. Thomas to find someone else who attempts it from an explicitly Christian perspective. The climate in academia may not be amenable such a project. In an era of specialization, of general (warranted or not) suspicion of eidetic claims, following a century of the devaluation of philosophy in scientific practice, with all of the old doubts concerning the possibility of a Christian philosophy, this explicitly theological, comprehensive philosopher of the essence of nature might seem like an odd one out. In some ways, that is precisely what makes her extremely refreshing. And beyond the vicissitudes of the Zeitgeist, there are the perennial questions of the whence and whither of our coming to be, questions that Conrad-Martius is asking. I, for one, am eager to see her answers heeded.


[1]     Ronny Miron: Hedwig Conrad-Martius: The Phenomenological Gateway to Reality (Springer 2021).

[2]https://historyofwomenphilosophers.org/project/women-in-early-phenomenology/

James G. Hart: Hedwig Conrad-Martius’ Ontological Phenomenology

Hedwig Conrad-Martius’ Ontological Phenomenology Book Cover Hedwig Conrad-Martius’ Ontological Phenomenology
Women in the History of Philosophy and Sciences, Vol. 5
James G. Hart. Edited by Rodney K. B. Parker
Springer
2020
Hardback 90,94 eBook € 71,68 €
XII, 272

Reviewed by: By Kevin M. Stevenson (PhD, of the Irish College of Humanities and Applied Sciences, ICHAS)

Before one reads Hart’s work, an introduction to Conrad-Martius’ (henceforth: CM) method which is also the title of the book, Ontological Phenomenology, it is important to bear in mind that it was originally his doctoral dissertation from the 1970s. This is important if we are to consider that much reflection most likely occurred between the time of the dissertation completion and the revisiting and further publication of this work. Not only does this allow the reader to consider the expertise Hart might have on CM, but also the importance of Hart’s academic career in further developing his dissertation into its final form.

In the Introduction, the book is informed to essentially aim to do four things in relation to CM’s ontological phenomenology. It provides a clear and concise message to the reader that the work is an interpretive summary of this phenomenological method. The four points that are to come across in the book are a) the context of CM in philosophy in general, b) why her work is pivotal for phenomenology as a method and discipline (but also why as a historical figure she is so important in the realm of phenomenology), c) the influences she has received and given to others in the field in the history of philosophy, and finally d) CM’s relationship with Natur Philosophie, in which potency and possibility are considered real ontological states of affairs.

Hart’s road map at the start of the book allows the reader to know what to expect throughout the text and provides an important background for understanding why Conrad’s (CM’s) ontological phenomenology developed in the way that it did. Being aware of her influences, standpoints and personal situation is important for this understanding, such as the debate between Goethe and Newton, being against post-Cartesian cosmologies and the reduction of nature to mathematical equation, phenomenology of colours, her attempt to give Christian cosmology ontological-cosmological foundations, and on a personal level, her financial and health difficulties (4). Throughout the book, Hart implicitly focused on the distinction between theology and philosophy within CM’s work, and on how CM would have interpreted the two, in order for the reader to consider CM as more of a philosopher than a theologian. Afterall, the series in which the book is part is based on ‘Women in History of Philosophy and Sciences’. At the same time, Hart’s omission of focusing on a label for CM, informs the reader of the context within which CM was living, where science, philosophy and theology were more alchemized together than in comparison to today.

From the beginning, Hart emphasized the importance of space for CM, and how its interpretation can be skewed by mathematical, technical, and quantifying approaches to cosmology; for her such bias orthodoxly follows a positivist faith. The mathematization of nature to be considered as the ultimate theoretical explanation for nature is not a possibility for CM. Our interpretation of nature is thus important for our understanding of the world and therefore ourselves; hence, Hart informs of how theology through grace (which allows us to ‘see better’) fills the gap that appears to be missing in the interpretation of nature by positivist approaches. Disclosing the eidetic structure of the cosmos is essentially what Conrad’s ontological phenomenology aims to do through meta-methodological questioning that departs from positivism. Hart eloquently summarizes this notion within Conrad’s method that considers the world as being double-featured, stating: “One can speak of the essence of the world as it is immediately given to us on the level of felt-meaning, an essence-intuition in which we participate with the totality of our existence (5).” We can therefore ‘speak’ of the world in physical terms through essence-intuition but also in more difficult foundational terms which is characterized as metaphysical.

For Hart, CM’s ontological phenomenology essentially aims to explore the experience of the things themselves which is important for both ‘speakings’ of the world. According to Hart, CM does this in a way that does not merely repeat a Husserlian approach, despite the fact Husserl was her teacher. Rather her approach propounds that phenomenology is the ‘true’ positivism by attending fully to the given, which leads to two by-products as a result of undermining positivism: a) a qualitative rather than quantitative study of nature which considers the manner in which nature appears as inherent in realontological structure and b) the importance of the noesis and noema within the Husserlian excessiveness of particular experience. These by-products reinforce a spiritual attitude which equates with a phenomenological being-in-the-world, in turn cohering with the excessiveness of experience which Hart stresses is so important for CM’s later work. Hart thus allows his book to represent an excellent resource for first time readers of CM, not only to understand the content within his book, but other works of CM or on CM.

Throughout the book Hart does a good job at highlighting the importance of CM’s work for not only philosophy but the social sciences. This is particularly the case with the epistemological notions set out within the book which are of such importance for the social sciences. Perhaps one of the most important terms to be considered within the book, besides her realontology, is intuition. Hart emphasizes how CM countered the positivist notion that intuition is derived from inference, as the concept of an object’s body-face, in Hart’s words, is conceptualized as the totality of an objective content from self-presentation within intuitive vision’s realm (11). To comprehend CM’s approach, Hart is true to CM’s style in that he includes phenomenological experiments, such as thought experiments, in order help the reader understand her thought. His snail analogy for example challenges the reader to participate in phenomenological investigation in order to deepen one’s understanding of CM’s methodology and in this case of the snail, the aspectival presentation of body-face as intuition. This served as an excellent backdrop to understand CM’s realontology, which aims to bridge gaps between nature’s qualitative appearances and its scientific explanations (18).

The methodology for CM’s realontology involves essence-analysis, which essentially analyses that which exceeds the concretely given perceptual reality: excess which is characterized as a) immediately sensed body-face, b) materiality, c) meaning, and d) categorical foundations of things (substance/reality). The analysis of excess thus aims at a non-reductivist approach to nature without idealism. In this respect, Hart sizes CM up against Husserl to not only emphasize the influence his work on phenomenology had on CM in terms of maintaining a fresh philosophy free from scientific positivism, but also to place her within the great players of phenomenology and its intellectual historical trajectory at the time of her writings.

Hart is successful at pinpointing the important influences CM had received from other philosophers of phenomenology for clarity’s sake, such as how within the bracketing of the epoché there involves the eidetic reduction that is most influential for CM amongst the other conceptions of the epoché. The other two conceptions being bracketing epistemological questions and the transcendental reduction. The eidetic reduction is more important for CM because of its movement from the factual to the essential via essence-analysis or in other words, the search for essentials; the investigation which encapsulates CM’s ontological phenomenology. The eidetic reduction is a leading back to the essence or fact structure or in other words, the full phenomenality structure to essence on its own, which is a turning from actual concrete existence to an idea through bringing essence to its full bodiliness via ideation (23). Hart thus characterizes CM’s work as an ‘essence hunting’ that undermines the incidental, factual, and concrete. And Hart stresses that the best manner in which to conceptualize such essence-analysis is through the ideation involved in the eidetic reduction (20). The suspension involved in the epoché is crucial for understanding CM’s ontological phenomenology because not only does it cohere with the eidetic reduction which she values, but also because it highlights the importance of intuition in our analysis of nature. Intuition, as mentioned above, is important for considering immediate experience in which essential meaning can be detected without categories or systems; concepts that require reductions to objects rather than essentials.

Hart shows that CM was important for the social sciences by not only countering the positivism of her day, which believed or even still believes itself to be with the true original and immediate givens of experience as sense data and facts (21), but by showing how ideation can allow for reflection on the implicitly or intuitively known criteria of things found in nature. Hart uses his own terminology to help the reader understand this, by informing that ideation (essence-intuition) involves the know-how and the know-that of inquiry. Hart does not consider her as merely dovetailing on Husserl’s work, since though he also considered such positivist notions as the superstition of facts (21), she however did not embrace Husserlian intentionality. Hart rather frames her as a phenomenologist who was driven to discover the things themselves, and within her historical context, was brave to do so. Phenomenology was a passion for her since essences within the phenomenological method are considered immediate as well, not just the positivist criteria mentioned above is immediate therefore. To elucidate this, she originally considered there to be an intuitive essential realm in contrast to an intuitive factual realm.

The power of intuition thus lies at the heart of positivism and phenomenology for CM, though for her sake, essence-intuition requires phenomenology, since such essentiality involves the process of ideation, disciplined perception (such as in the case of the epoché) and an artistic sense of difference. Phenomenology’s principle of all principles is original intuition, as phenomenological essence does not lie simply on the surface of appearance as may be the case in positivistic approaches to nature. Hart characterizes CM’s method of ontological phenomenology as a reflexive cosmology, countering the forceful and direct approach of positivism on nature for an essence-analysis that permits the essential meaning of nature’s experience to emerge; an analysis that approaches that which in itself is considered inexhaustible and so irreducible. CM thus aims to expose the a priori laws and regions of nature through her realontology as her phenomenological ontology. Hart focuses on CM’s notions of this and the human challenge to do so, as the importance of fiction, thus the imagination and creativity, which are uniquely human attributes considered of utmost importance for CM’s approach. Essential meanings, alike those found in Husserl, are akin to ‘’horizons of indeterminate inklings’’, as peripheral inklings change our knowledge into essence-intuition. Analysing vague wholes into elements that bring forth essences, as a role of phenomenology, makes phenomenology a method more than mere language analysis (25). Hart is able to show CM’s Continental ‘feel’ by extracting concise information from the works that inspired CM, like Husserl, the Munich and Gottingen Circles, and Hering, without losing the importance and originality of her work.

Rather than get caught up in ‘works of meta’ which any work in philosophy can be guilty of committing, Hart is able to outline the relevance of CM’s work through its practical implications. This can be shown under the subtitle 2.3 ‘The Essence of Essence’, in which essence is considered something that discloses itself to the method of essence-intuition which avoids getting caught up in ‘meta-works’. Essence is thus taken to comprise of unique characteristics of objects’ fullness. Such fullness becomes understood to mean that essence requires a bearer and thus is always a reference for something else. The practical use of ideation thus becomes known to reveal if objects have core essential essences or if such elements are merely accidental. Hart emphasizes that object(s) is a broad concept and can even refer to practical issues we face in human life and experience. Hart thus informs how CM would inform of the utility of ideation in everyday life. The concept of promise was an example of a practical issue or what Hart considers as ‘states of affairs’ in contrast to the immutability of essences through a physical example involving a house, with the latter considering the notion of how its physical changes might not change its essence (27). The former example reveals the importance of CM’s work for practical ethical matters whereas the latter informs of unresolved philosophical issues since the ancient Ship of Theseus thought experiment.

CM’s method which takes the notion of essence belonging to objects themselves, in which the object’s idea remains separate from the object itself (as a result of ideating or objectifying an object’s essence leading to the object having it ideally in spite of the fact that the essence of the object is inseparable from the thing itself) has consequences for both physical scientific and social issues alike. Hart shows that the method is thus able to graft phenomenology and ontology together, echoing CM’s background in phenomenological concepts such as the Lebenswelt. CM’s Phenomenological Ontology clarifies the notion that the process of ideation leads to the idea that an object’s essence or whatness or morphé (such as the essence of an issue like promising for example) has a second separate existence to itself as an object, through a process of subsumption; a process that is often overlooked in the sciences but which CM brings to light. Although Hart could have brought in terms such as mereology or even Gestalt psychology to consider for the reader to investigate to assist in understanding CM’s method at this juncture, Hart appears to be aware of the danger of getting off topic and straying from the initial task of explaining CM’s approach from bringing in such concepts. One example however of when introducing other notions into the work could have been beneficial is with Hart quoting on CM and Hering (as one of CM’s influencers) on the importance of phenomenology’s consideration of: “relations of an object to its whatness is different than its relation to its properties (29).” Considering Gestalt psychology and even Cartesian dualism as additional notions to investigate could have been beneficial to the novice reader in philosophy or social sciences if introduced, however, we are aware of the limitations of Hart’s task at hand.

Understanding CM’s method thus requires the awareness of an object’s ‘what’ as taken to be the phenomenological basis of talking about ‘being-what’ or ‘being-such’. The concept of eidé is important here as it represents the essentialities of philosophical importance for both CM and Hering (as CM’s essential essence derives only from a comparison with Hering’s eidé). Eidé is a concept contrasted with objects which cannot be object realizable as eidé can. Here Hart does bring in Ancient philosophy to assist in considering how CM and Hering are disciples of Plato, perhaps in the sense of committing to the universality of ideas or in Plato’s terms, Forms. This helps in understanding that the eidé are not akin to whatnesses which need a bearer, since the eidé rest in themselves and are thus required for phenomena like objects (or social issues) to manifest their essences. Essences can thus be taken as eidé as that which are behind all essential essence.

Informing the reader of CM’s influences throughout the work does not lead Hart to simply consider CM as someone who chronological falls after Hering in terms of philosophical history, rather he frames their relationship as one that is akin to Husserl and Heidegger. Both relationships of their works can be said to contain an essence or spirit that does not replicate the other but rather challenges, reinforces, contributes and reciprocally builds on each other, which is perhaps why Hart was interested in nominating CM as a candidate for contributory women in philosophy and science. Her realontology in Chapter 2 is thus introduced by Hart in a manner in which we see it flowering out of the philosophical history of CM’s time. To emphasize the uniqueness of CM’s method, Hart does not hesitate to contrast it with positivistic approaches to reality. In CM’s ontological phenomenology or realontology, ideation subsumes an object’s eidos, so that eidos can be made concrete to a whatness or morphé. This is not an empirical process, but rather values more the idea that essential essences of objects are never realized in a concrete sense as a positivist would claim. Instead, an intuition or sense of an object is to be considered more fundamental than the empirical experience of an object. This is due to the fact that that which is presented to consciousness does so ‘as’ something. The object therefore bears the morphé (whatness or form) which is what is mediating the eidos (31).

In CM’s work, the eidos are juxtaposed to the universality of an idea and Hart gives the example of ‘redness’ being eidos instead of ‘red’ itself; hence the role of philosophy is to search and expose eidé as the meanings in themselves or intelligibility’s ultimate dimensions. The practicality within questioning or searching for eidé lies in the fact that such a task involves limit questions which involve reaching intelligibility’s foundations. The eidé provide objects with their essential meaning as via eidé the essence of ideal and real things can be understood which shows the epistemological implications of CM’s work. The eidé’s realm is important because it is the kosmos noetos, the latter term in this phrase related to noema and thus meaning, in turn considering a meaning-cosmos.

In order to keep in mind the fact that Hart is writing on a person of history, Hart does justice to CM’s cultural upbringing throughout the book in his analysis of the manner in which the term ‘meaning’ is taken by CM. He emphasizes that CM takes it with the German definition ‘Sinn’, which involves an objective meaning, one which is capable of disclosing itself to the intention of consciousness, thus a meaning that announces its essence through self-speaking objects (36). This unveils the ordering of CM’s approach to the experience of nature and all it entails, as essence, in its immediacy, is primary within the order of cognition, being first within knowing’s order, whereas eidé require an attachment to meaning to be cognized, since meaning realizes eidos. Ideation (the imaginary objectification of eidé) essentially brings eidé to givenness in order to get deeper into essence as the immediately given, so within the order of ontology, meaning (eidos) as defined as Sinn, is what holds as fundamental primacy within ontology. Hart informs that for CM, meaningful-topos is the terminology used to encapsulate the referential process of meaning making.

Within Chapter 2, Hart further elucidates the role of phenomenology within CM’s phenomenological ontology. Phenomenology is an investigation of essence that enters the realm of eidé, thus it is a ‘walking around’ of essence in order to find relations and properties of the meaning-topos of objects. Hart is critical of CM’s approach here, in that he believes that CM lacks an explanation of the causal categories she uses as that which is bounded to the metaphysics of participation, which is so crucial for meaning making. He highlights that Hering and CM founded phenomenology as essence analysis within meaning’s ultimate dimensions, which are apparently definite yet inexplicable. Eidé therefore cannot be merely grasped objectively, as any transcendental act of objectification of eidé in a positivistic sense distorts their essence. CM thus supports the indirect experience of objects through the concretization of eidé through ideation. Found within this notion is the practical implications of applying CM’s approach to nature and consequently science. The effort of objectification always leads to a distortion of the pure meaning of that which is objectified, so for CM, the purity of something is a realontology as essence-analysis, which involves a dialectic that is without pre-judgements and without any sort of Hegelian historical contradiction of truths. Hart explicates that for CM, it is the destined quest for meaning that is already and always intended within a horizon of meaning that is important; understood before any sort of cognition to be known through a kosmos noétos (which is juxtaposed to a reality cosmos which cannot unite with such a meaning cosmos). The horizon of meaning that is already set up for discovery and which ontology’s task is to illuminate through eidetic reduction and ideation is a study of the essence of that which presents itself. The Husserlian supported transcendental reduction on the other hand which as mentioned above CM does not adopt, purifies phenomena from the conferrals of reality. It is within these reductions that Hart highlights that CM, much like Heidegger, considered Husserl to be too subjective from the start, but she later revisited and supported his approach only to be finally contrasted with Husserl in his support for transcendental phenomenology whereas CM held onto an ontological phenomenology in which what is considered to hold meaning is actually a real being. The ‘really real’ is grounded in itself not in any sort of noema. Husserlian transcendental reduction does not involve the possibility of grasping fundamental structures of the ‘really real’ as such for CM, which allows her to refrain from supporting such a reduction.

Hart further outlines CM’s three senses of phenomenological attitude in Chapter 2, which further distances her approach from Husserl. These are a) Husserl with a purified world version, b) primacy to the eidetic reduction in order to allow for epistemological questions, and c) a realontological attitude. Essentially, CM’s realontology considers that it is only the method of essence-analysis that allows for transcendental elements to reach their givenness through the performance of the epoché bracketing. Essential analysis thus involves critical philosophy and theory of knowledge (epistemology), in turn allowing for transcendental phenomenology to correspond to realontology and the world-constitution ego without limiting itself to a transcendental reduction. Hart sums up the difference between a Husserlian approach and CM’s as the former thematizes the metaphysical-egological object of the world whereas the latter thematizes the metaphysical-transcendental actualization of the world via a realontological reduction which presents the factual and actually given. Hart emphasizes that CM’s approach can thus be considered a shift (a cosmological turn) from the finished to the pre-finished cosmological dimensions of reality. Realontology’s role can thus be considered a philosophy of nature via essence and horizonal analyses, provoking an examination of the full phenomena of nature.

The realontology thus reconnects the context within which rich concrete phenomena exits; phenomena which science essentially removes from context. In Chapter 3, the present context is considered to involve seeing the kind of being an idea possesses. Horizon-analysis increases the scientist’s awareness of the blind-spots, attitudes, and habits which they may involve towards nature. Hart stresses that this does not make CM anti-scientific nor embracing a romantic return to nature, rather her realontology involves a three-fold nature of a) a philosophy of nature, b) essence-analysis, and c) horizontal-analysis. Both a) and b) involve a reconnaissance (a unifying intuition akin to an unthematic felt-solution to issues), which Hart characterizes as looking at one’s surroundings in order to improve our perception of the immediately given, with b) involving specifically the seeing beyond of borders to see precise essence (topos) (50). Both b) and c) involve speculation, with b) having the character of seeing things within limits and c) involving the speculation of the limits we set on objection perception.

Commencing Chapter 3 by bringing an end to Chapter 2, Hart can be said to bring back the importance of the concept of the Lebenswelt. We see that for CM, any reductive mechanical interpretation of life would not be possible due to life-essences’ givenness of living creatures and the machine-ness of all that mechanical. This sort of contemporary view of CM’s work allows us to see her work as not a mere arm-chair phenomenology according to Hart (53), as the realontology intends to rescue the appearances of nature in order to thus grasp appearances’ essences and in turn disclose appearances which can be taken as mere appearances. We have seen that such analysis of essence is not of that just found in reality, but with social issues as well, which in turn gets the arm-chair phenomenologist to stand to their feet and engage with the social world around them, armed with the realontology as a method for living.

In Chapter 3, the foundation of the realontology is thus further elucidated and Hart informs of the realontology as a method aiming to show meaning objects as presented with ontological moments that are immanent, and this is framed by Hart as echoing Frege’s objects of thought with a third realm with a reality that differs from that of things. As mentioned above, promises, as states of affairs, involve objective dimensions in which judgements are considered intentional acts that must involve psychological adjustment. It is here that it is considered that the presentation of objects to consciousness does not suffice it to be a state of affair; categorical intuition (essence-intuition) thus immanently involves grasping something as such a thing that it is, which is a state of affairs through an ontological moment. It is ontological since our mere thinking of something includes us in being; a notion that must include the importance of time. Realontology’s fundamental movement is founded on the notion that that appearing in itself via out of itself in accordance with modalities of the rootedness of self involves three movements: a) substantial (bearer), b) essential (what), and c) existential (presenting object as union of a) and b)).

It is from these movements of the realontology that we consider that essence exists independently and prior to objects as things. Hart informs of the dichotomy between eidé (pure qualia, Logos, meaning) and meaning-being (objects which come from eidé) as important to understand this. The eidé are akin to Platonic Forms, and can exist without the physical world, as it is only when we speak of them that they transform from objects to subjects because they exist independently of knowing subjects. Eidos, as entities without references to anything else are thus distorted when they are objectified by human contact, as they become reduced to hypostases. Hart emphasizes here that for CM, it is phenomenology’s task as the study of the real and essence’s pure investigator, to disclose eide’s inexhaustible realm as pure meaning. For CM, reality is something that stands over nothing, a nothingness with a mode of being present which therefore allows for the possibility of eidetic analysis. Being’s essential level of present objects is through essential analysis as there is a three-fold sense of being a) pure, b) really existing, and c) existential movement linking the ideal and real. In 3.3, Hart informs that phenomenological experience which is synonymous with eidetic experience considers a potential mode of being. Any non-being involves a power in terms of emergence, as it allows for the consideration of a being grounding its own being whilst being the ground itself. This leads to the human capacity of not being confined to the present moment as the human being can ‘make present’ via the past and present; an intentional possession of time.

It is from this backdrop of connecting the essence-analysis of CM’s realontology to inspecting the emergence of essence that Hart considers CM’s transcendental-imaginative intuitive time which is grounded in fact through ontological means. The human being is thus not known empirically (as flowing in temporal time) nor transcendentally (holding a position that is outside of self and the empirical world). CM’s transcendental-imaginative time involves a z-fold motion which stands at the head of her realontological understanding of time which has important consequences for human understanding. For CM, the past therefore is the form of intuition that is transcendental imaginative, which Hart considers to be noughted (76). Time thus involves a founding process that is not within time itself, as the present holds its own kinetic. In terms of the future, it is incorrect for CM to consider it dictated by a forward motion of actuality for existence nor as moving forward into a distant future. Rather, the transcendental-imaginative temporal movement as a mere passing in the Aristotelian sense coheres with CM’s concept of time. Substance therefore involves a standing under of its own being, thus as self-grounding of itself whereas imagined objects are non-substances. Here, Hart informs that in relation to substances, there are two modes an object can stand in itself: hyletic (a being posited outside of itself) and pneumatic (substance free from essential constitutive form, thus pure essence of existing itselfness e.g. archonal being own self). The importance for this dichotomy is it allows for an understanding of how nature is able to realise itself within its own actuality.

For Hart, CM’s work over her lifetime was to inform of the speculative vision of the hyletic and pneumatic, as her realontology not only aims to link ontology and the philosophy of nature, but involves nature’s appearing in relation to metaphysical foundations; establishing the basic regions of nature through an analysis of nature in qualitative and concrete forms. Nature is taken as a symbolic whole revealing fundamental categories of the entire cosmos, which again involves the importance of her work for aesthetic and Gestalt psychology. CM thus aims to provide an analysis of nature which achieves what the idealistic tradition hopes or has hoped to do, as her involvement of retrocendence (reverse transcendence) is a spirituality that illuminates thought’s essence from the character of this mode of being itself without being limited to subjectivity. Throughout the book therefore, Hart continually informs of the importance of realising that CM’s approach is anti-Cartesian and anti-Augustinian, in the same sense that she does not adopt a transcendental reduction in a Husserlian sense. These three approaches in her view might limit themselves to either hyper-subjectivity in the case of the latter or a reduction of mind to matter in the former through hyperbolic internalization. Pneumatic substance allows her approach to hold, since it is a substance free from essential constitutional forms of itselfness, thus a substance that is being its own self, emerging as an archonal being. CM’s support of emergence reveals an underlying pragmatic essence that never completes itself.

Hart shows Heidegger’s influence on CM at this juncture on an emerging sense of substance, as the concept of care, as an ontological rather than psychological category, is existential. Such a conception of care allows for a hypokeimenal being which is thrown onto itself to be considered. This being is pneumatic and archonal as it projects beyond itself, finding itself in alterity through objectification and projection. Hart allows us to see CM’s reconfiguration of Heidegger’s being-in-the-world, as the pre-possession of the world is considered a pre-grasping of cosmic-meaning-being. The epoché is eternally in the background and such a conception of existence has implications for the manner in which space is conceptualized as well. Space that is intuited is not empty for CM, and so the essence-analysis through her realontology on apeiric space (the aperion being the infinite totality) holds great importance as it provides for this space’s ontological existence. The phenomenological experiment for CM in the sense of space is informed by Hart to involve the consideration of the qualitative change that occurs when apeiric space is aimed to be grasped. Such a task leads to a distortion and in turn the space loses its infinity as such a pure space in turn becomes a metric surface space. The concept of gestalt is important here, in that within such an experiment, the limits of dimensions’ definitions are considered and a dichotomy between a real surface space and a transcendental surface space are to be reckoned with. Heidegger again peaks his head into CM’s work at this point, as uncanniness becomes a concept to understand the ontological consideration of apeiron space. Such space is considered as an unmasking of space as something that goes beyond the limits of the human body. The real ‘now’ cannot be experienced thus a metric peiric space is taken as a ‘here’. Space thus has for CM an intuitive medium of continuity in which limits are established through essence which assists in the understanding of nature’s self-formation in the next chapter.

Chapter 4 begins with a consideration of the phenomenology of life as involving a subjectivity that discloses itself within matter. The concept to elucidate this is entelechy; a soulish potency to be realised, which is conceived psychologically. Hart informs how this put CM’s ideas against Driesh, as despite the latter’s rejection of phenomenological essence-intuition, the latter’s support of entelechy coheres with CM’s phenomenological notion of essence as having a unique character which makes it what it is. Hart informs that this consideration of the potentiality of the entelechy is important for the discipline of art, as the artist’s role is to explain the entelechy, as essence-entelechies do not equate with ideas but rather present them. And so art can assist in working out the notion of species found in nature. Hart informs that these notions coalesce into CM’s intuitive qualitative essential level which is juxtaposed to the modern causal-genetic level. This allows us to see the continental flavour of CM’s approach to nature which refrains from applying cybernetic models of machines to living organisms. Machines are given their selfness since their interiority is objective, and so Hart clarifies this with machines/computers as having subjective objectivity (subjectivity objectively), unconscious living things with objective subjectivity, and conscious living things with subjective subjectivity. Hart does not want the reader to lose sight of the view supported by CM that cybernetic perspectives for understanding the human being, just as we saw above with the mathematization of nature, are not possible for CM. The natural scientist will always involve a prejudice that considers intuitive understanding within nature’s realm to be intimately and concretely linked to physical extension and so causality; a physicalism that CM would consider dangerous for understanding nature.

Causal approaches to nature do not allow the essence of physical nature to unfold, and so the aim of phenomenology for CM is to bring forth new causal categories. Her realontology involves an essence analysis that is meant to discover the kinds of causes in nature; an ontological analysis of causality that analyses energy and potency and which reveals the two types of causality a) mechanical and b) conscious. Her essential ontological approach, however, is not to be confused with an intentional movement as a transcendental approach would support. It is within the entelechial potency that we are to discover essence-entelechy’s ontological nature. Here Hart considers the concept of actualization to encapsulate the potential energy and power that is so important for understanding CM’s view on the forces of nature. There is essentially no entelechial cause for CM, so there is no such epigenetic potency for CM as real potency (power) is always the ‘not yet’. It is from this potentiality that Hart informs of Heisenberg’s ‘Uncertainty Principle’ as coherent with the essence-intuition of CM’s approach of a potential ‘not yet’ essence of nature (its pre-actual dimensions). Aether becomes known as the elementary substance acting as a medium for a rigid and empty elasticity for substance in contrast to light as serving the ontological and consciousness. Aether discloses itself ecstatically and so it is no wonder that the realontology involves the thesis of physical energy resting on a presupposed substrate of an ontology that is definite and constituting through actualization via another dynamic that sets itself in motion and thus becoming a tendency for an accomplishment. The method of realontology involves a phenomenology that increases the visibility of the essence of the phenomenon derived from its appearing as a way of recovering the primordial movement of the cosmos as an ecstatic othering. The realontology thus describes nature as self-generating through a dialectic between essence-entelechy and essence-material.

Within CM’s system, energy contains an ontological foundation, and Hart emphasizes that for CM, energy does not equate with aether but rather energy and mass-hyle are to be taken as substrates. Energy is not a substance, however, all energy is founded on substance. The qualitative actualizing factor of nature is thus an existential moment; we take the world able to come to a pause only on the surface therefore, but this does not consider the cosmos as a hierarchy. The cosmos as Logos involves a continuing process of essence-entelechian expression. Nature is in constant revelation of essence-entelechy which is to be conceived as the complete logos of that which is in nature’s realm (AKA total essence), bringing the power of real potential into being. Within this philosophy of nature as essence-analysis disclosing essence-powers, the human being is conceived for CM as having a spirit rather than equating with spirit, with their emotions as being proper to them. The originating self in turn derives from the essence-entelechy using essence-material to configure individual Logos; an emergent essence from essence-entelechies and essence-material. Such emergence, as a philosophy of nature, is further elaborated in Chapter 5.

In Chapter 5 Hart aims to further CM’s approach as being understood as a non-empirical method. Time involves a motion that does not depend on empirical processes of change, but rather on an existential motion. The pure present in this sense is without a past and without knowledge of any real temporal motion, as CM is against any translatory motion. There exists thus the phenomenological experiment for CM of considering how the world does not change, and Hart here considers what change is for CM then, specifically if it is transcendental. If change is not empirical, then there is the consideration if nature and change involve a transcendental-empirical dimension. Hart informs of CM’s interest in Indian philosophy here, especially the transcendental character of the entity Vishnu, but also how Aristotle’s Physics had an impact on her. The latter’s notion of the world not being existent in space but rather constitutive of space is of importance for CM, as Aristotle considered that that circular motion is the only possibility of perfection. CM thus derives from these Aristotelian influences the transcendental concrete as the aethereal world-periphery (a sort of space-time), thus a cyclically moved reality as an aeonic motion. The circular motion is considered for CM the most accurate symbol of expression for the totality and trans-temporal presence. CM’s cosmos for Hart is thus to be considered as more of a tapestry than a ladder, which echoes the notion mentioned above that CM does not take the cosmos as a hierarchy. The cosmos emerges continually and aeonic space-time in turn renews the world in a constant fashion. The human being is the microcosmos existing within a polarity between the world-periphery (heaven) and the world-centre (underworld), the former characterized as an energetic potency.

Hart stresses that the human being can generate and creatively constitute things rather than create according to CM, and involves an existence with nothingness and death.  The world is expanding which makes temporal existence derive from the constant actualization of the world-event as a totality. The world-peripheral entelechies spark change and this unfolding nature is characterized as hominization for Hart. Such hominization allows for technology, abstract art, and other peculiarities of human existence. Here there appears to be a Hegelian historical development from human freedom, however without the dialectical nature of a Hegelian approach to culture. For CM, the horizon is the world background and context which is an unthematical constitution of thematic and objective experience. This echoes Hegel’s notion of zeitgeist, in which world epochs involve spiritual powers within the background as horizons. It is here that Christian spirituality is important for CM’s approach, as Christ becomes known as the final mystical body in which we understand animals as deriving from human existence not vice-versa. The Christian ‘Fall’ is commensurate for the disintegration of the organic whole of any space-time, in which the wheel can represent the symbol for the aeonic world’s continual actualization through a cyclical time. The end of temporal time through a Christian cosmic notion of time as a coming aeon allows for the realization of the potential for the great waves of aeonic time.

Despite the intellectual depth of CM’s conceptions of the cosmos, time, and space, Hart is still successful at informing the reader the significance of her work for practical matters. The thought of the schizophrenic patient not having a future is an example utilized to assist the reader in understanding just how the realontology could assist someone suffering from such a condition to cope or provide a practitioner an approach to such a condition (211). Towards the end of the book Hart taps even more into the less theoretical of CM’s work by informing of some of the historical notions important for CM’s academic trajectory. CM’s place between the two movements in phenomenology is important to keep in mind for Hart; that of the realist ontological and the transcendental idealist, both of which would play out within the Gottingen and Munich Circles of her day. CM’s support of Logos being found within human reason and her insight into the speculative movement of the Christian cosmological understanding of nature allows Hart to conceive of her with a unique phenomenological but also hermeneutical method that remythologizes the cosmos. In Chapter 6, Hart informs of how CM thought that her work truly uncovered personal powers, times, and objective mythical spaces, through the use of the aeonic world periphery which re-interprets in a unique manner the Christian cosmos. Myth therefore has three senses, that of a symbolic epistemological, a phenomenological through epoché, and the realontological through objective reference. Her remythologizing of the cosmos thus considers heaven as more than a theological concept, but rather an anthropological, cosmological, and religious one. Heaven essentially creates a heterogenous dimension which allows for fiction, schizophrenia, and love to exist, as heaven represents a constant symbolism for the human being as a ‘really real’, thus a phenomenological point which allows for the creation of the horizon and everydayness of life.

Despite the mythical nature of CM’s cosmos, Hart does an excellent job of bringing the reader back into the history of ideas which this book succeeds at highlighting throughout. The homogeneous Newtonian cosmos is at odds with CM’s cosmology of heterogeneity, the latter of which considers the existential meaning to be derived from the spatio-temporal emergence of nature. CM aims for a description of how the world presents itself before scientific understanding’s distortion. Such a contrast allows the reader to understand CM’s cosmos as taking heaven as a state, which is a phenomenological hermeneutical ontology and task. Chapter 7 furthers this exploration into heaven and phenomenology’s importance for such a concept, but also how as a method it can assist in understanding heaven’s implications for the philosophy of nature. The world becomes known as the ultimate horizon that accompanies objects, as objects in the present are not within a punctual time of ‘Nows’, but rather in a continuous stream. Human beings thus bring to perception a grounding which is characterized as a sedimentation of a historical-horizontal retention of meanings, as the world is constituted by this grounding retention, but also infinite possibility (protention) and anticipation; a horizon that is open and which stretches into the distance. Hart then connects this human experience to Heidegger’s Dasein, as he informs how Dasein’s fallenness into its everydayness leads to an anxiety that makes Dasein feel they are not at home with such unfamiliarity. Such unfamiliarity is related to CM’s remoteness found in the realm of heaven as the human being experiences alienation from the world-periphery.

In the Conclusion, Chapter 8, Hart reminds the reader of the fact that CM’s realontology does not embrace a transcendental reduction, as her method does not involve a disengagement from the natural attitude’s belief system within the reality of the world’s self-preservation as a Husserlian approach would accept. Rather, CM presupposes that the natural attitude is hypothetically valid which leaves room for the possibility of the explication of the natural attitude’s noematic correlation. For CM this a correlation that contains an essence of the ‘really real’ as the transcendental reduction does not provide the chance for an essence-analysis of the real; hence her ontological phenomenology is not just of perception, as it is not just an eidetic of a life-world existential analysis. Instead, Hart emphasizes that for CM, phenomenology involves a disclosure of Logos and that which shows itself. Phenomenology is essentially essence-analysis which aims to disclose and uncover the full sense and meaning of world-space through a discovery of its realontological status. Realontology considers the world as not in space, as time and space are considered aspects of the world’s mode of being; the trans-physical dimensions which realontology points to preserve the lived-experience of the cosmos which consists of the earth’s and heaven’s regions. And so Hart has shown that CM’s realontology is not just a method that can reinforce the experience of the life-world, but can be a way of life as well, unmasking the world-space’s antinomies in the process. It does this through a cosmological turn that brings us to the tradition of symbolizing the universe into a story through an affirmation of a holy physics which affirms objective mythical times, spaces and powers. The other worldly dimension that the realontology can bring to life echoes that of the grotesque in human experience, which makes it an existential method whilst maintaining a natural attitude to the world.  It is no wonder that Hart included an Appendix including a translation of an excerpt from CM’s Metaphysics of the Earthly, written only slightly before the ugliness found within the atrocities before and during World War 2.

In closing, Hart’s book placed the spotlight on a figure in the Western intellectual tradition who deserved such attention. Not only for the obstacles she faced in terms of her sex, race, and geographical living, but the contribution she provided particularly for the philosophy of science. In general terms, however, not only was the philosophical method of CM shown to be original and important for a plethora of theoretical disciplines, from theology to aesthetics, but it was also shown to provide practical implications that allowed her approach to phenomenology as realontology to bridge the gap between the real and the ideal, and the objective and subjective. Intentionality however, in the phenomenological sense, was a concept in the book that appeared to be a bone of contention for Hart. It appeared to be a concept that equates with Husserlian phenomenology, however, was it or was it not a concept supported within CM’s method? It can be left for the readers of the book to determine.