Plato: Timaeus

This is an essay on perfection and its objects in the Timaeus. Two features of this work are noteworthy. First, the emphasis throughout is on Timaeus' views and not Plato's. Second, I show how broader aspects of Timaeus' cosmology are directly relevant to his philosophy of perception.

This article concerns the so-called irrigation system in the Timaeus’ biology (77a-81e), which replenishes our body’s tissues with resources from food delivered as blood. I argue that this system functions mainly by the natural like-to-like motion of the elements and that the circulation of blood is an important case study of Plato’s physics. We are forced to revise the view that the elements attract their like. Instead, similar elements merely tend to coalesce with each other in virtue of their tactile (...) features as the atomists describe. The notion of attraction is replaced with this notion of mere coalescence. I begin by outlining how blood is made from food. I then argue that an understanding of health and disease compels us to read Plato as if he were an atomist and to abandon the popular scholarly interpretations according to which the elements attract each other. (shrink)

L'étude entend montrer que, si le temps est finalement unique, l'espace, lui, est originellement (et non du fait de la constitution de l'être-au-monde) multiple. Une analyse d'un passage du Timée où la Chôra est dite tithênê (nourrice) permet d'asseoir une interprétation de la différence foncière entre espace et lieu. Le lieu a progressivement disparu pour s'absorber dans l'espace neutre qui traduit homologiquement l'infinité divine ou pour s'atténuer dans le site. Il est difficile de trouver une analyse adéquate du lieu depuis (...) la mort de Leibniz (1916) jusqu'à la thèse de Bergson en latin sur la notion aristotélicienne de lieu. This study aims at making clear that, if, on the one hand, time is finally unique, while, on the other hand, we can say that space is in itself, and not for transcendantal reasons (the constitution of human subjectivity), a many-fold entity. By considering with great accuracy Plato's Timæus, where topos as chôra appears as tithênê (a nurse), we are able to interpret the very real distinction between space and place. Place has progressively disappeared, being absorbed in this homology of God's infinite, which is indeed Newton's neutral space, or at least being weakened in « site » (Ort). We will hardly find, between Leibniz' death and Bergson's latin thesis on aristotelician conception of topos, one correct study about place. (shrink)

This paper approaches the Critias straightforwardly as a work of political philosophy but gives greater attention to Athens’ opponent, Atlantis, whose founding, political organization, and eventual decline each offer important lessons about the aims of legislation and political life. I begin by comparing the foundation of the two cities as presented in Critias’ myth, with a special focus on the role of divine persuasion (I). I then describe the political organization of Athens and Atlantis, showing how they reflect the different (...) ways in which their founding gods exercised divine persuasion (II). Next, I focus on the decline of Atlantis and the causes behind it (III). Finally (IV), I discuss the lessons that I think can be gathered from the foregoing sections and show how the themes that emerge from the comparison of the two cities anticipate their more extensive exploration in the Laws. (shrink)

The relationship between mind and necessity is one of the major points of difficulty for the interpretation of Plato’s Timaeus. At times Timaeus seems to say the demiurge is omnipotent in his creation, and at other times seems to say he is limited by pre-existing matter. Most interpretations take one of the two sides, but this paper proposes a novel approach to interpreting this issue which resolves the difficulty. This paper suggests that in his speech Timaeus presents two hypothetical models (...) of creation, one with an omnipotent demiurge and one where he is limited by matter, so as to investigate their theoretical and empirical validity. Further, he shows that each model is ultimately an inadequate explanation of the first principles of the cosmos. Timaeus’ speech is therefore properly understood to be aporetic: it leaves its listeners aware of the difficulties inherent in the two models of creation, but without a more viable alternative. (shrink)

In dialogues ranging from the Symposium to the Timaeus, Plato appears to propose that the philosopher’s grasp of the forms may confer immortality upon him. Whatever can Plato mean in making such a claim? What does he take immortality to consist in, such that it could constitute a reward for philosophical enlightenment? And how is this proposal compatible with Plato’s insistence throughout his corpus that all soul, not just philosophical soul, is immortal? In this chapter, I pursue these questions by (...) applying the distinction between general and earned immortality to the Phaedo and the Symposium. I argue that, while Plato attributes general immortality to all soul in the Phaedo, in the Affinity Argument, he proposes that the philosopher’s soul can achieve earned immortality through contemplating forms. It is this form of immortality that Plato claims is unavailable to humankind in the flux passage of the Symposium. At the same time, in the ascent passage, he holds out the possibility – albeit with significant reservations – that the philosopher’s soul may transcend its humanity and achieve earned immortality through its communion with the form. (shrink)

This book sheds new light on Plato's cosmology in relation to Greek religion by examining the contested distinction between the traditional and cosmic gods. A close reading of the later dialogues shows that the two families of gods are routinely deployed to organise and structure Plato's accounts of the origins of the universe and of humanity and its social institutions, and to illuminate the moral and political ideals of philosophical utopias. Vilius Bartninkas argues that the presence of the two kinds (...) of gods creates a dynamic, yet productive, tension in Plato's thinking which is unmistakable and which is not resolved until the works of his students. Thus the book closes by exploring how the cosmological and religious ideas of Plato's later dialogues resurfaced in the Early Academy and how the debates initiated there ultimately led to the collapse of this theological distinction. (shrink)

The principles governing elemental composition, variation, and change in Plato’s Timaeus appear to be incompatible, which has led commentators to prioritize some of the principles to the exclusion of others. Call this seeming incompatibility the problem of isomorphic variants. In this paper, I develop the theory of proportionate atomism as a solution to this problem. Proportionate atomism retains the advantages of rival interpretations but allows the principles of material composition, variation, and change to combine into an internally coherent and explanatorily (...) powerful atomic physics. (shrink)

In our article, we will focus on an analysis of the relationship between man and the cosmos, set against the backdrop of ancient Greek ideas about the origin of the world. On the one hand, we will deal with the images of the creation of the world provided in Greek mythology and the religious tradition associated with it (in particular Hesiod); on the other hand, we will approach the anthropomorphic elements within the framework of philosophical cosmogonies (Plato’s dialogue, the Timaeus). (...) Our aim is to show that Greek philosophical thought was never able to fully relinquish this anthropomorphism but nonetheless it did move away from a purely mythological tradition (as found in Hesiod and the pre-Socratics) and, in some measure towards a more scientific interpretation of the cosmos (as found in Plato). (shrink)

In Plato’s eponymous dialogue, Timaeus, the main character presents the universe as an (almost) perfect sphere filled by tiny, invisible particles having the form of four regular polyhedrons. At first glance, such a construction may seem close to an atomistic theory. However, one does not find any text in Antiquity that links Timaeus’ cosmology to the atomists, while Aristotle opposes clearly Plato to the latter. Nevertheless, Plato is commonly presented in contemporary literature as some sort of atomist, sometimes as supporting (...) a form of so-called ‘mathematical atomism’. However, the term ‘atomism’ is rarely defined when applied to Plato. Since it covers many different theories, it seems that this term has almost as different meanings as different authors. The purpose of this article is to consider whether it is correct to connect Timaeus’ cosmology to some kind of ‘atomism’, however this term may be understood. Its purpose is double: to obtain a better understanding of the cosmology of the Timaeus, and to consider the different modern ‘atomistic’ interpretations of this cosmology. In short, we would like to show that such a claim, in any form whatsoever, is misleading, an impediment to the understanding of the dialogue, and more generally of Plato’s philosophy. (shrink)

I argue that Plato thinks that the soul has location, surface, depth, and extension, and that the Timaeus’ composition of the soul out of eight circles is intended literally. A novel contribution is the development of an account of corporeality that denies the entailment that the soul is corporeal. I conclude by examining Aristotle’s objection to the Timaeus’ psychology and then the intellectual history of this reading of Plato.

This paper concerns the place of Plato’s eschatology in his philosophy. I argue that the theory of reincarnation appeals to Plato due to its power to explain how non-human animals came to be. Further, the outlines of this theory are entailed by other commitments, such as that embodiment disrupts psychic functioning, that virtue is always rewarded and vice punished, and that the soul is immortal. I conclude by arguing that Plato develops a view of reincarnation as the chief tool that (...) the gods have to ensure that virtue is victorious over vice throughout the whole cosmos. (shrink)

I argue that, according to Plato, the body is the sole cause of psychic disorders. This view is expressed at Timaeus 86b in an ambiguous sentence that has been widely misunderstood by translators and commentators. The goal of this article is to offer a new understanding of Plato’s text and view. In the first section, I argue that although the body is the result of the gods’ best efforts, their sub-optimal materials meant that the soul is constantly vulnerable to the (...) body’s influences. In the second section, I argue that every psychic disorder is a disruption of the motions of the inner psychic circles by the body; moreover, I defend my translation of 86b. In the final section, I argue that the goal of education is to restore the circles to their original orbits, and I disarm a possible objection that bad education is also a cause of psychic disorder. (shrink)

This paper concerns Plato’s characterization of the body as the soul’s tool. I take perception as an example of the body’s usefulness. I explore the Timaeus’ view that perception provides us with models of orderliness. Then, I argue that perception of confusing sensible objects is necessary for our cognitive development too. Lastly, I consider the instrumentality relationship more generally and its place in Plato’s teleological worldview.

Analogies between the human and the cosmos run throughout Plato’s Timaeus. Timaeus claims that the cosmos came to be as mind’s “persuasion of necessity.” This paper argues that an anthropological equivalent to this “persuasion” can be found in Timaeus’ suggestive account of the human liver. Mediating between intellect and desire, the organ shows the problem of mind and necessity reflected in the human soul.

Following the traces of some references to pre-existing matter in the Septuagint, the article analyses the interpretation of Gen 1, 2a in Philo of Alexandria’s De opificio mundi with a focus on his omission of the ἀκατασκεύαστος character of the earth. Philo’s interpretation is closely linked to his conception of emptiness and to his pioneering defence of a creation ex nihilo. In his cosmology, which is articulated as a dual interpretation of the Genesis and Plato’s Timaeus, the matter plays an (...) essential role. Philo justifies its existence on Aristotelian-Stoic grounds, highlighting the process of gradual refinement whereby matter passes from being a rough ὕλη to being an elaborate type of οὐσία. (shrink)

Parmi les difficultés bien connues du Timée compte celle touchant au rôle problématique d’éros dans la cosmologie que Platon met dans la bouche de Timée. Dans son exposé cosmologique, Timée rend compte de deux inflexions différentes d’éros – sexuelle et philosophique –, mais il n’explique pas comment ces deux inflexions sont censées coopérer pour rendre possible la vie la meilleure qui soit : la vie philosophique. Il se trouve que l’imprécision du « discours érotique » de Timée ainsi que son (...) incapacité à rendre compte des conditions de possibilité de l’activité philosophique dans le cosmos qu’il dépeint font surgir la question de l’interprétation du dialogue dans son ensemble. Sans réaliser lui-même cette interprétation, notre article vise à lui en fournir l’éventuelle matière. (shrink)

Plato used mathematics extensively in his account of the cosmos in the Timaeus, but as he did not use equations, but did use geometry, harmony and according to some, numerology, it has not been clear how or to what effect he used mathematics. This paper argues that the relationship between mathematics and cosmology is not atemporally evident and that Plato’s use of mathematics was an open and rational possibility in his context, though that sort of use of mathematics has subsequently (...) been superseded as science has progressed. I argue that there is a philosophically and historically meaningful space between ‘primitive’ or unreflective uses of mathematics and the modern conception of how mathematics relates to cosmology. Plato’s use of mathematics in the Timaeus enabled the cosmos to be as good as it could be, allowed the demiurge a rational choice and allowed Timaeus to give an account of the cosmos. I also argue that within this space it is both meaningful and important to differentiate between Pythagorean and Platonic uses of number and that we need to reject the idea of ‘Pythagorean/platonic number mysticism’. Plato’s use of number in the Timaeus was not mystical even though it does not match modern usage. (shrink)

Plato’s Timaeus reveals a cosmos governed by Necessity and Intellect; commentators have debated the relationship between them. Non-literalists hold that the demiurge, having carte blanche in taming Necessity, is omnipotent. But this omnipotence, alongside the attributes of benevolence and omniscience, creates problems when non-literalists address the problem of evil. We take the demiurge rather as limited by Necessity. This position is supported by episodes within the text, and by its larger consonance with Plato’s philosophy of evil and responsibility. By recognizing (...) the analogy between man and demiurge, the literal reading provides a moral component that its non-literal counterpart lacks. (shrink)

Two of Plato’s dialogues, the Parmenides and the Timaeus, deal explicitly with the relationship between being and time. The former builds on the assumption that whatever is must be temporal, while the latter makes being and time mutually exclusive. This paper begins by examining how the argument develops in the Parmenides, specifically in the corresponding sections 140e1-142a1 and 151e3-155e3 of the first and the second deductions of the dialectical exercise, as well as in the corollary to the second deduction at (...) 155e4-157b5. It then compares this argument with the account of time given in Timaeus 37e6-39e2, which alludes to the account given in the Parmenides. In stressing the incompatibility of these two accounts, it highlights a remarkable feature they both share. Parmenides’ argument starts from the assumption that whatever is in time must be present, past or future, whether a process or a state resulting from a process. As he advances further in the game of Zenonian antilogies, however, he reduces the dimension of the present to a mere ‘now’, conceived of as a ‘stop’ in the process of becoming. In the corollary, he eventually removes the present from time the ‘instant’ in which a change between two mutually exclusive processes or states occurs. Timaeus, for his part, immediately rules out that the present is a temporal dimension, by restricting temporality to the past and the future. Thus, in both accounts, the present vanishes from time and temporal processes are made dependent on extratemporal conditions. However, Parmenides’ argument points to an extratemporal principle of indeterminacy allowing for change, while, for Timaeus, there are two extratemporal conditions for temporal processes, namely the being of the intelligible Forms, on the one hand, and a pre-cosmic, disorderly becoming in space, on the other. (shrink)

How does Plotinus interpret the chora in Plato’s Timaeus? For him, Timaeus 48e‑52d deals with matter (hyle). The identification of chora with hyle goes back to Aristotle’s Physics IV.2. Aristotle’s interpretation of Plato’s chora as matter was echoed by Theophrastus and the Stoics and prevailed in Middle‑Platonist, neo‑Pythagorean and early Christian authors. In addition to the identification of chora with hyle, the ancient interpreters of the Timaeus conflated hyle with Plato’s ananke (Tim. 47e‑48a). Plato himself distinguishes between chora and ananke. (...) The latter denotes everything that appears in the “receptacle” prior to the ordering of the world by the demiurge, while chora is another name for the receptacle itself. In Plato, the receptacle accounts for the fact both that there are transient images of intelligible beings and that these images appear to occupy a place, i.e. that they are spatially extended. This is why the receptacle is given its alternative name “ground” (chora) and why it is also called “place” (topos) and “seat” (hedra). Although the receptacle itself cannot be spatially extended in the same way as that which appears “in it”, it is the cause of spatial extension. For Plotinus, two characteristics of matter are of primary importance : lack of size and impassibility. In the treatise II.4.[12].2‑5, he highlights the former, and in III.6[26].7‑19 he elaborates on the latter, while commenting once again on the former. In III.6[26].7‑19, he argues that this conception of matter is in line with how Plato conceives of it in the Timaeus. The “receptacle” cannot be acted upon (paschein) nor can it possess any size (megethos). Only the images of true beings “in” it can. In doing so, however, they make matter appear to “stretch out” alongside themselves. But this is not actually the case, because matter itself has no extension. On one point, however, Plotinus’ account differs from Plato’s. According to Plotinus, not only does matter not possess size, but it is not the cause of size either. The size of the appearances derives from the formulas (logoi) of which these appearances are images. Each formula encompasses within itself the measure of the size that its image will assume : the formula of horse encompasses the size of a particular horse, the formula of human being the size of a particular human being. Plotinus describes in more detail how a formula, in unfolding out of the soul, “stretches out”, thus acquiring size. He also makes a comparison between this process and the way in which formulas in the human soul display images of themselves in our image‑making faculty. He characterises this process as a motion starting from the formula and resulting in its “division” (merismos). This is what makes the image of the formula extended, i.e. divided partes extra partes, when it appears against the invisible background of matter. Since matter neither possesses size nor is the cause of it, it can be called “ground” (chora), “place” (topos) or “seat” (hedra) only in an improper way. (shrink)

Anthropologist Tim Ingold promotes Indigenous animism as a salve for perceived failures in modern science, failures he claims also hobbled his own early work. In fact, both Ingold’s early and later work rely on modern scientific ideas and images. His turn to animism marks not an exit from the history of European science, but an entrance into, and imaginative elaboration of, distinctly Neoplatonic themes within that history. This turn marks, too, a clear but unacknowledged departure from systematic social analysis. By (...) re-embracing social analysis, Ingold would overcome the obscurity that now hobbles his later work. (shrink)

In the Timaeus, Plato’s Timaeus offers an account of the sensible world in terms of “images” of forms. Often, images are taken to be particulars: either objects or particular property instances (tropes). Contrary to this trend, I argue that images are general characteristics which are immanent in the receptacle, or bundles of such characteristics. Thus, the entire sensible world can be analysed in terms of immanent general characteristics, the receptacle, and forms. Hence, for Timaeus, fundamentally, there are no sensible particulars. (...) I end by arguing that my interpretation is compatible with Timaeus’ construction of sensible entities from triangles. (shrink)

At Tm. 47e, Timaeus steps back from his discussion of what came about through noûs and turns toward an account of what came about through anankê. Broadie, 2012, Nature and Divinity in Plato’s Timaeus, sketches out two routes for the interpretation of this ‘new beginning.’ The ‘metaphysical’ approach uses perceptibles qua imitations of intelligibles in order to glimpse the intelligibles (just as we look at our reflection in a mirror in order to view ourselves). The ‘cosmological’ reading assumes we use (...) the perceptible part of the cosmos in order to come to know the entire cosmos. Broadie openly favors the cosmological reading for understanding the Timeaus as a whole. However, she confines its utility to the Timaeus and does not recommend it for other dialogues. I use Broadie’s ‘cosmological reading’ to better understand what Plato distinguishes as anankê in his second beginning. This sets the stage for my argument that Broadie’s cosmological reading is a promising means for understanding the metaphysics and epistemology of the Forms. By making some comparisons to Sophist (251c–256a), I show that a refined understanding of anankê in the second beginning of the Timaeus clarifies what Plato thinks is involved in coming to know a Form. I argue that a close look at what was available to the Demiurge for cosmic creation by means of noûs yields three distinct ways in which his construction of the cosmos was limited by anankê. Clarifying these three ways in which anankê operates shows that the Demiurge’s manipulation of the foundational elements yields a perceptible world that brings out some potential relationships among Forms while suppressing others. In particular, the Demiurge’s geometricization of the elements leads him to make compromises concerning how Forms can combine in the Receptacle. These choices produce nomological relationships among the Forms with respect to where they can overlap in the Receptacle. This produces the law-like and reliable, but unnecessary, behavior of the perceptible world. I argue that our understanding of these limitations and their translation into where the Receptacle can partake in more than one Form simultaneously, figures importantly in the estimating the potential for human knowledge of the Forms. I question the use of ‘necessity’ as a translation for ‘anankê’ in the Timaeus. (shrink)

Au moment de décrire la fonction des yeux humains, qui sont donnés par les dieux afin que l’on puisse déduire la philosophie et le nombre à partir de la rotation du firmament, Timée interrompt son récit pour développer son explication des mécanismes physiques sous‑jacents à la fois à la vision et à tout type de mouvement et de changement. Il est intéressant de noter que, dans le contexte du Timée dans son ensemble, la chôra ne semble pas indispensable. Par exemple, (...) l’explication de la nécessité impliquant les types corporels de base et leurs isotopes et composés aurait pu s’effectuer assez facilement avec la simple affirmation des quatre solides réguliers, de leurs mouvements réguliers et des deux triangles élémentaires dont ils sont composés. Je soutiens dans cet article que si nous regardons la chôra dans le contexte du récit antérieur du mouvement d’errance des planètes, dont on dit qu’elles encadrent et font ressortir le nombre et l’identité du mouvement des étoiles fixes, et que si nous comparons cela à la décomposition des triangles élémentaires dans le contexte de la vie et de la mort du corps doté d’une âme, nous pourrons discerner la chôra dans le mouvement errant du vieillissement, de l’effondrement et de l’éloignement de la limite normative dans le récit plus large de la vie dans le Timée, tant au niveau biologique que moral de la description. Cette approche permettra de rendre compte non seulement de l’unité de la pensee de Timée, mais aussi du caractère disruptif du tournant remarquable par lequel il introduit la cause errante. (shrink)

I examine Aristotle’s reasons in DA I.3 for rejecting the claim that understanding (nous) is a magnitude (megethos), an idea Aristotle associates most explicitly with Plato, who describes nous as a self-moving circle in the Timaeus. Aristotle shows that his definition of soul, on which soul is not a magnitude or body of any kind, can explain perception, thought, and motion better than his predecessor’s materialist accounts. But unlike perception and motion, nous is not actualized through the body nor does (...) it have a bodily organ, which makes nous a very different kind of soul capacity. Earlier thinkers, including Plato, already maintain that nous does not have a bodily organ, but they cannot explain how nous could operate or be a mover without being some sort of body itself. Even in the Timaeus, nous is described as being a kind of magnitude. But if nous were a magnitude of any kind, Aristotle claims it would not be able to think or reason. There is something about being a magnitude qua magnitude that makes reason impossible. His critique of Plato in I.3 prepares the way for his account of nous in DA III.4. (shrink)

I defend, against its more recent critics, a literal, factual, and consistent interpretation of Timaeus’ creation of the cosmos and time. My main purpose is to clarify the assumptions under which a literal interpretation of Timaeus’ cosmology becomes philosophically attractive. I propose five exegetical principles that guide my interpretation. Unlike previous literalists, I argue that assuming a “pre-cosmic time” is a mistake. Instead, I challenge the exegetical assumptions scholars impose on the text and argue that for Timaeus, a mere succession (...) of events and the relations derived from it (before, after, simultaneous with) imply no time, given the narrow definition of the term used in the dialogue. For Timaeus, I explain, time is measurable, regular, and dependent on the motion of the celestial bodies. A mere succession of events like the one needed to understand the creation story and the pre-cosmos requires none of these elements. Readers of Plato erroneously assume that a succession of events implies time, but that is to impose a conception of time absent in the text. The chapter offers a detailed reconstruction of the pre-cosmic stage under a literalist interpretation and argues how it is compatible with the immutable relationship between the Demiurge and the cosmos. -/- This is an open access chapter distributed under the terms of the CC BY-NC 4.0 license. chapter 4. (shrink)

Cosmology was central to many intellectual currents in late antiquity. Inspired by classical texts, notably Plato's Timaeus and Aristotle's Physics, thinkers of the period pondered questions about the world's origin and its physical constitution. This volume, with contributions from an interdisciplinary group of scholars, illustrates the range and diversity of these reflections. Fascination for cosmology connected Plato and Proclus with Origen and Gregory of Nyssa. For readers interested in ancient philosophy, early Christian theology, and the history of science, this volume (...) provides a unique insight into a history that is still too often neglected. L'intérêt évident pour la cosmologie platonicienne, en particulier pour le Timée, et, en parallèle, l'attention renouvelée pour toute une tradition commentariste aristotélicienne, influencent profondément la façon de comprendre et de formuler certaines questions liées à l'origine du monde et à sa constitution physique à la fin de l'Antiquité. Grâce aux contributions d'un groupe interdisciplinaire d'universitaires, ce volume illustre la grande diversité de ces réflexions. Pour les lecteurs intéressés par la philosophie ancienne, la théologie paléochrétienne et l'histoire des sciences, ce volume offre un aperçu unique d'une histoire encore trop souvent négligée. (shrink)

Plato wonders why a good God might allow the existence of evil. This problem is especially pertinent to his dialogue Timaeus, in which Plato describes the creation of the cosmos by a benevolent divine craftsman called the Demiurge. A justification for why God allows evil to exist is called a theodicy. Readers of the Timaeus have interpreted the theodicy of this dialogue in many ways. After showing the shortcomings of some common interpretations, I offer a largely original interpretation of the (...) theodicy of the Timaeus. I claim that in the Timaeus evil is caused by conflict between souls, and this conflict is something that the good (but not omnipotent) Demiurge could not avoid. However, I think that Plato’s Demiurge may have made the best of this imperfect situation by placing souls in a cycle of reincarnation that functions as a rehabilitative punishment, and thereby ordering the cosmos for their redemption. (shrink)

Le démiurge de Platon et l'atome primitif de Lemaître sont deux intuitions inédites, artifices théoriques d'astronomie anti-observationnelle. La genèse de ces artifices remonte à la thématisation présocratique de l'unité cosmique. Platon institutionnalise les Formes intelligibles et platonise les présocratiques. Lemaître, contemporain d'Einstein, est tributaire d'une unité cosmique marquée par la gravitation relativiste, qui disqualifie le système classique ayant, en son temps, déclassé les substances et le mouvement aristotéliciens. La théorisation montre comment Platon fait du démiurge le concept axial de son (...) astronomie géométrique. L'univers est conforme aux normes mathématiques. La perspective dynamique de Lemaître émerge contre le modèle stationnaire d'Einstein/De Sitter, aristotélicien en son fond. Au bout, deux configurations apparaissent : sphérique et homogène, l'univers de Platon repose sur le triangle. L'« âme du monde » en assure la dynamique. D'interprétation quantique, la singularité cosmique de Lemaître développe le modèle d'un univers issu de l'explosion (big bang) d'un atome primitif : l'isotope du neutron. (shrink)

Burnet's text at Pl. Ti. 55c7–d6 is at least questionable, and opting for a different reading at 55d5 would shed light on an intriguing argumentative aspect of Plato's cosmological account: God confirms the metaphysical reasons why there is just one perfect world.

Scholarship on Plato's Timaeus has paid relatively little attention to Tim. 77a–81, a seemingly disjointed passage on topics including plants, respiration, blood circulation, and musical sounds. Despite this comparative neglect, commentators both ancient and modern have levelled a number of serious charges against Timaeus' remarks in the passage, questioning the coherence and explanatory power of what they take to be a theory of respiration. In this paper, I argue that the project of 77a–81e is not to sketch theories of respiration, (...) circulation, and digestion, but to explain how the human body is maintained in light of and despite constant environmental depletion. Further, I argue that in order to understand this account of “the replenishing system,” we need to understand Timaeus' striking analogy of the fish trap or nassa. Commentators have generally focused directly on the workings of the bodily construction that Timaeus likens to a fish trap, but without considering how we should understand the analogy qua analogy. I develop a functional reading of the analogy that yields a coherent account of the replenishing system on which previous criticisms of Timaeus' remarks on respiration do not arise. Aside from lending greater unity to the passage, both internally and within its immediate context in the dialogue, this account of the replenishing system contributes to our understanding of Timaeus' reason-and-necessity explanatory framework as applied to the human body and has noteworthy implications for specific explanatory principles, in particular like-to-like motion and circular thrust. (shrink)

There are different meanings of the word “God” that have been used by philosophers throughout the history of philosophy, such as theism, pantheism, panentheism, deism, and etc. The subject of this paper is the concept of “God” in Plato’s philosophy. Considering Plato’s different treatises that have the most theological material, it can be said that he has not meant a single concept of this word. In The Republic, given the characteristics that have been attributed to God, like simplicity, transcendental, it (...) seems that his conception of God is close to theism. In Phaedo, since Plato does not give any role to the gods, it seems that we are encountered a Plato without God. In Timaeus, we encounter two candidates, Demiurge and the world’s soul. Some philosophers consider Demiurge as a myth and the world’s soul as Plato’s God. According to this view, Plato can be regarded as the source of inspiration for the Pannanteists. In contrast, some other believe that the world’s soul here is a myth and Demiurge is Plato’s God. This viewpoint is closer to ​​theism. In the Laws, since Plato mentions some attributes to God, such as three absolutes, the origin of moral obligation, and etc. His conception here is very close to theism. On the other hand, the “first self-moved Mover” presents a panentheistic conception of God. His various treatises also provide evidence in favor of the unknown God of the Negative Theology. Thus, there are various conceptions of God in Plato’s philosophy. (shrink)

Donald J. Zeyl begins the historical section of the book by tracing divine causation throughout classical Greek philosophy. Some of the Pre-Socratics held to a single god as the source of rational order or change. These views suggested that the cosmos may be explained teleologically. Plato takes up that suggested promise in his Phaedo and finds it wanting. Instead, he looks to Forms as (formal) causes of natural processes. This direction of inquiry leads him to postulate, in the Republic, the (...) Form of the Good as the “unhypothetical (causal) first principle.” In Plato’s later writings, most notably in the Timaeus, Plato presents a full-blown teleological account of both the universe at large and the varieties of living things that inhabit the earth. The agent that brings about the conformity of the world to the Forms is the divine Demiurge. -/- Aristotle inherits from Plato the belief that processes in the natural world are to be understood teleologically. These processes are explained by the nature (or form) of the organism itself. Aristotle’s world has no beginning and thus has no place for an original efficient cause to get the world started. Aristotle’s “Unmoved Mover” plays no causal role in the processes of the natural world, all of which are exhaustively explained in terms of Aristotle’s well-known theory of the “four causes.” Nevertheless, the Unmoved Mover is a final cause. -/- After Aristotle, only the Stoics offered an account of divine causal agency. As pantheists, the Stoics identified the world with a divine rational principle they named the Logos. All events, natural and social, are completely determined by Reason, so the Stoics were strict determinists, both in their natural philosophy and in their social and ethical thought. (shrink)

This paper provides a rational reconstruction of a Platonic trope bundle theory that is a live alternative to contemporary bundle theories. According to the theory, Platonic particulars are composed of what Plato calls images of Forms; contemporary metaphysicians call these tropes. Tropes are dependent on Forms and the Receptacle, while trope bundles are structured by natural kinds using the Phaedo's principles of inclusion and exclusion and the Timaeus’ geometrised elements, as well as by co-location in the Receptacle. Key elements of (...) discussion include persistence and abundance of Plato's tropes. The resulting theory is compared with contemporary trope bundle theories. (shrink)

This first full-length study of the Arabic reception of Plato's Timaeus considers the role of Galen of Pergamum in shaping medieval perceptions of the text as transgressing disciplinary norms. It argues that Galen appealed to the entangled cosmological scheme of the dialogue, where different relations connect the body, soul, and cosmos, to expand the boundaries of medicine in his pursuit for epistemic authority – the right to define and explain natural reality. Aileen Das situates Galen's work on disciplinary boundaries in (...) the context of medicine's ancient rivalry with philosophy, whose professionals were long seen as superior knowers of the cosmos vis-à-vis doctors. Her case studies show how Galen and four of the most important Christian, Muslim, and Jewish thinkers in the Arabic Middle Ages creatively interpreted key doctrines from the Timaeus to reimagine medicine and philosophy as well as their own intellectual identities. (shrink)

The aim of this paper is to examine the implications of Plato’s use of the term stoicheion, since his awareness of stoicheion’s polysemy reveals his view of the origin, the complexity and, at the same time, the order of reality. Moreover, his use of stoicheion allowed him both to inherit and to detach himself from his predecessors. I begin by presenting the history of the notion of stoicheion; then, since one of the meanings of stoicheion is ‘letter of the alphabet’, (...) I focus on the Cratylus, which contains the first of several passages where Plato employs the alphabet as a paradigm for the structure of a complex system. Finally, I turn to the Theaetetus, where Plato, for the first time, uses stoicheion in the sense of ‘element’ and where, through the relation letters/syllables, Plato clarifies that enumeration and juxtaposition are not sufficient to attain the real knowledge. I will argue that only thanks to these steps can we understand the occurrences of stoicheion in the Timaeus, where Plato first states that air, earth, fire and water are not stoicheia tou pantos, and then reveals that, instead, the basic triangles are ‘the elements of the universe’. (shrink)

This review tries to show that even if Plato ties the soul in the later dialogues more to the body, he still adheres in the Timaeus to the separation of the soul from the body as far as it is possible for humans, and in the Laws to the soul as a separated entity whose union with the body is in no way better than separation.