It is shown that Aristotle’s references to automata in his biological treatises are meant to invoke the principle behind the ancient conception of the lever, i.e. that points on the rotating radius of a circle all move at different speeds proportional to their distances from the center. This principle is mathematical and explains a phenomenon taken as whole. Automata do not signify for him primarily a succession of material movers in contact, the modern model for mechanism. For animal locomotion and (...) embryological development, Aristotle models his dunamis concept on the idea of mechanical potential that the lever principle displays. (shrink)

According to the standard view, the function of the unlimited dunamis argument (Physics VIII.10, Metaphysics Λ.7 1073a5–11) is to introduce a new property of the first immovable mover, namely its lack of magnitude. The paper challenges this view and argues that the argument at issue serves to prove that the eternal motion of the first heavenly sphere is caused by an immovable mover rather than by a moved mover. Further, the paper shows that, at least in Phys. VIII, the (...) unlimited dunamis argument is the main argument for the immobility of the Prime Mover. (shrink)

Aristotle notoriously begins his examination of being in the sense ofdunamisandenergeiainMetaphysicsTheta with what he describes as the sense that is ‘most dominant’ but not useful for his present aim. He proceeds to define the not-useful sense ofdunamisas “the principle of change in something else or in itself qua other”, along with other senses derived from this primary sense. But what then is the useful sense? All that Aristotle tells us at the outset is that it is a sense that extends (...) “beyond things spoken of only in relation to motion” and nowhere in Book Theta does he explicitly identify the useful sense as such. This has allowed for very different interpretations of the useful sense in the literature, the primary ones being that it is (1) ‘possibility’, (2) the potential to receive a form, (3) being-potentially-x understood modally as encompassing all specific senses ofdunamis, and (4) capacity for substantial change. The present paper argues that there are significant problems with all of these suggestions and defends an identification of the useful sense ofdunamiswith the sense that Aristotle explicitly opposes to the not-useful sense at the start of Theta 8:phusis(‘nature’). This goes hand-in-hand with an identification of the useful sense ofenergeiawith ‘activity’ as distinguished from motion/change at the end of Theta 6. What makes these senses ofdunamisandenergeiathe useful ones for Aristotle’s present aim is that they are required to explain fully the priority ofenergeiatodunamisin substance defended in Theta 8, they support the identification in Theta 9 ofenergeiawith the good, and they explain the unity of the only substances that Aristotle recognizes as being genuinely substances: natural living substances. (shrink)

Since management is about influencing - influencing people who work in the organization, the structure and practices of the organization, as well as its environment - how ‘influencing’ is understood evidently makes a huge difference. The still popular empiricist concept of cause-effect relations as presupposing regularities is mistaken, since it forms no sufficient basis for action in new and unique situations. As alternative notions of causation, the paper discusses the Critical Realist conception of causal powers and the counterfactual conditional view, (...) arguing that the classical notion of power (dunamis in Greek; power, potentiality, possibility, ability, capacity, capability in English) offers the most fruitful analysis of causal relations for managerial purposes. The paper presents the four ontological features of power scrutinised already by Aristotle in his Metaphysics and Physics, and actively discussed in current philosophy of science. These are the potentiality-actuality distinction, full power as consisting of an active and a receptive component, the distinction of rational and non-rational powers, and the idea of hierarchy of powers. These ontological distinctions suit management contexts not only because they allow room for new unique decision-making situations, but primarily because they imply invaluable practical advice. The relevance of the power ontology for management is illustrated in the context of the Bohm and the new Timeout dialogue. The paper concludes with a summary of the practical implications of the classical power ontology to management and the adoption of dialogical practices to managerial expertise. (shrink)

La puissance est une notion fondamentale de la philosophie d'Aristote. Pendant de l'acte, elle constitue un principe caracteristique de son ontologie et de sa physique. Par la diversite de ses aspects, elle est aussi, pour partie, l'heritiere des usages anterieurs du concept : en rhetorique, en medecine, en ethique, en mathematiques et dans la dialectique platonicienne. Les deux premieres parties donnent une idee d'ensemble de ces usages et des problemes qui leur sont lies. La troisieme partie examine les fonctions qu'Aristote (...) lui-meme assigne a la notion. Elle propose notamment de nouvelles lectures des principaux chapitres du livre theta de la Metaphysique, ou Aristote definit sa maniere propre d'articuler a la notion de puissance celles de mouvement, d'acte et de substance. Ce volume montre donc comment Aristote reforme l'idee de puissance et comment, ainsi, il construit un concept majeur de sa propre philosophie. (shrink)

WHATEVER WE KNOW is framed in concepts, categories, and theories. These provide structures, wholly or partly conveyed in a grammatically correct language. Most thinkers take this claim to close off further inquiry, contenting themselves, and urging others, to do no more than rest here. All, they think, should occupy themselves with understanding and using a primary set of formulations, and making evident how these are, could be, and must be displayed.

The term dunamis, by which Aristotle defines rhetoric in the first chapter of The Art of Rhetoric, is a "power" term, as its various meanings in Aristotle's corpus—from vernacular ones like "political influence" to strictly philosophical ones like "potentiality"—attest.1 In the Rhetoric, however, dunamis is usually translated as "ability" or "faculty," a designation that, compared to other terms that describe persuasion in ancient Greek poetics and rhetoric (such as "bia" ["force"] or "eros" ["seduction"]), marks rhetoric as a neutral (...) human capacity rather than the use of language entangled in the vagaries of violence and desire.2 John Kirby calls Aristotle's definition "one of the boldest moves in the history of .. (shrink)

Modalities enter into practically every area of contemporary philosophy. Great progress has been made in understanding the variety of differences between what is possible, what is actual, and what is necessary. But things were not always so clear. We owe a great debt in this area, as in so many others, to Aristotle, who had a lot to say on the topic, part of which comprises his discussion and use of the actuality/potentiality distinction. One important task in understanding his discussion (...) of actuality and potentiality is locating the distinction within the wider area of modality in general. One very general area in which modalities are significant is the assessment of arguments. Aristotle provides us with the basics of a modal logic, and in Metaphysics V 12, treats the family of modal notions expressed by the Greek noun dunamis and its cognates. This article explores his account of energeia and dunamis, matter and substance, capacities, natures, and dispositions. (shrink)

The important conceptual innovation of Metaphysics 9 is not in an extension of dunamis into the ontological realm, but in establishing energeia as the primary sense of the unit of being. The career of dunamis moves from principles of contrariety requiring a hypokeimenon ; through its role in the concept of natural motion ; to different roles for active and passive ; to correlations of capacity/fulfillment with body/soul, matter/form, and inner/outer potentialities. These developments lay bases for conceiving the (...) reality of natural beings as enactments, undergirded with the potentials of their constitutional fulfillments, and opens the way in Metaphysics 12 to understanding a being of pure enactment without dunamis. (shrink)

This essay aims to analyze the structure of Aristotle's Metaphysics Θ by explicating various senses of the term δύναµις at issue in the treatise. It is argued that Aristotle's central innovation, the sense of δύναµις most useful to his project in the treatise, is the kind of capacity characteristic of the pre-existent matter for substance. It is neither potentiality as a mode of being, as recent studies maintain, nor capacity for `complete' activity. It is argued further that, in starting with (...) the κύριος sense of δύναµις as capacity for change, Aristotle begins with the most familiar and acknowledged kind of capacity, in order to move to the less familiar but ultimately more useful notion of capacity for substance, and to bring these two kinds together through an analogical relation. (shrink)

This dissertation is a study of the relationship between dunamis and energeia in Aristotle’s ontology. Throughout his writings, Aristotle employs these terms to uncover what I call a proto-phenomenological description of the different ways of being. While contemporary scholarship has suggested the significance of dunamis and energeia for Aristotle’s understanding of being, the relationship between these terms has often been interpreted as mutually exclusive. Accordingly, dunamis would be understood as subordinate to energeia, which would function as the (...) sole primary term of Aristotle’s ontology. I argue that it is a mistake to consider dunamis and energeia as non-reciprocal and subordinate terms. Furthermore, I suggest that this mistake often leads to an underestimation of the dynamic character of Aristotle’s proto-phenomenological account of being. To recover this dimension of Aristotle’s thinking, I claim that dunamis and energeia ought to be understood as reciprocal and co-constitutive terms characterized by a constant and dynamic interrelation. To defend this interpretation, I turn to Aristotle’s conceptions of nature, movement, and soul as discussed in the Metaphysics, Physics, and De Anima. I argue that each of these key terms provide a concrete illustration of how dunamis and energeia function as co-constitutive principles for the manifestation of the being of natural beings. I propose that this proto-phenomenological approach to being remains Aristotle’s most significant and enduring contribution to Western ontology. (shrink)

In the recently published 1924 course, Grundbegriffe der aristotelischen Philosophie, Martin Heidegger offers a detailed interpretation of Aristotle's definition of kinesis in the Physics. This interpretation identifies entelecheia with what is finished and present‐at‐an‐end and energeia with being‐at‐work toward this end. In arguing against this interpretation, the present paper attempts to show that Aristotle interpreted being from the perspective of praxis rather than poiesis and therefore did not identify it with static presence. The paper also challenges later variations of Heidegger's (...) interpretation, in particular his account of dunamis in the 1931 course on Metaphysics Theta, which insists that its mode of being is presence‐at‐hand. By arguing that this reading too is untenable, the paper concludes that Aristotle's metaphysics is not a metaphysics of presence and that his texts instead point toward a possibility of metaphysics ignored by the attempts of Heidegger and others to overcome it. (shrink)

Dans les Mémorables, Socrate exhorte ses compagnons à vivre kata dunamin. Or il est possible de distinguer deux emplois assez différents de cette expression ; en effet, la dunamis que l’on doit respecter et en fonction de laquelle l’on doit vivre désigne tantôt les ressources matérielles, tantôt la compétence technique dans un domaine précis. Le premier emploi concerne le régime de vie de chacun, l’aide aux amis et les offrandes aux dieux, alors que le second emploi est directement lié (...) au thème de la connaissance de soi.In the Memorabilia, Socrates urges his companions to live kata dunamin. This expression can be used in two very different ways. Sometimes the dunamis that we must respect and in accordance to which we must lead our lives refers to material resources, and sometimes it refers to expert knowledge in a specific field. The first usage concerns our way of life, our assistance to our friends and our offerings to the gods. The second usage ties in directly with the theme of self-knowledge. (shrink)

Le livre de Gwenaëlle Aubry (GA) présente d’emblée plusieurs niveaux de lecture. Selon le premier, il constitue un volet d’une histoire au long cours, d’Aristote à Leibniz, des rapports entre le bien et la puissance (p. 9 n. 2). On distingue à ce niveau trois figures qui structurent l’horizon d’ensemble : celle d’abord du dieu chrétien dont l’omnipotence rend problématique la bonté et incompréhensibles le mal et le désastre de la Shoah dont l’évocation ouvre le livre ; une seconde figure, (...) iné... (shrink)

On propose ici une lecture de la Métaphysique inspirée de Ε, 2, 1026a33-b2, prenant la dunamis et l’energeia comme principal sens de l’être. Le couple conceptuel de l’en-puissance et de l’acte fournit ainsi à la fois le principe d’une réponse possible à la question disputée de la « science recherchée », et le fondement d’une ontologie singulière, que l’on caractérise comme une ontologie axiologique. On commence par analyser la signification de ces notions telle qu’elle se déploie en Métaphysique Δ (...) et Θ : au terme de cette analyse, l’acte apparaît comme nommant l’identité réelle, ou réalisée, de l’être et du bien, et l’en-puissance, cette identité comme à réaliser. On montre ensuite, en suivant Ζ et Η, comment le couple de la dunamis et de l’energeia, et non celui de la matière et de la forme, est au principe de la substance sensi­ble, puis, à partir de Λ (en particulier Λ, 5, 1071a3-6), comment la dunamis et l’energeia valent, par-delà les substances sensibles, comme les principes communs à toutes les substances, sous la modalité spécifique de l’analogie. Le couple de l’en-puissance et de l’acte assure ainsi à la fois la généralité du dis­cours ousiologique, et le primat réel du principe théologique (qu’Aristote désigne toujours comme acte, et jamais comme forme). On montre enfin com­ment dunamis et energeia fondent non seulement une ousiologie unitaire, mais aussi une ontologie générale, en ce qu’elles s’appliquent, sous certaines conditions, aux êtres mathématiques. On s’interroge, pour finir, sur la signi­fication de l’inversion, par Plotin, de la dunamis aristotélicienne, et de la désignation du Premier Principe non plus comme acte pur, mais comme « puissance de tout (δύναμις πάντων) ». En ce geste plotinien, on reconnaît l’origine d’un mouvement d’identification du divin non plus au bien, comme le faisait Aristote à travers la notion d’acte pur, mais à la puissance - à une puissance qui, ultimement, pourra être pensée comme excédentaire au bien. Comme la théologie de l’acte pur, cette ontologie axiologique de l’en-puissance et de l’acte est victime d’un oubli dont, en conclusion, est brièvement esquis­sée l’histoire. (shrink)

Doing and Being confronts the problem of how to understand two central concepts of Aristotle's philosophy: energeia and dunamis. While these terms seem ambiguous between actuality/potentiality and activity/capacity, Aristotle did not intend them to be so. Through a careful and detailed reading of Metaphysics Theta, Beere argues that we can solve the problem by rejecting both "actuality" and "activity" as translations of energeia, and by working out an analogical conception of energeia. This approach enables Beere to discern a hitherto (...) unnoticed connection between Plato's Sophist and Aristotle's Metaphysics Theta, and to give satisfying interpretations of the major claims that Aristotle makes in Metaphysics Theta, the claim that energeia is prior in being to capacity and the claim that any eternal principle must be perfectly good. (shrink)

Doing and Being confronts the problem of how to understand two central concepts of Aristotle's philosophy: energeia and dunamis.

The author presents the Aristotelian conception of capacity/potentiality (dunamis) – one of the most important in Aristotle’s metaphysics. A closer inspection allows to draw conclusion, that the concept of capacity is an important link between ‘theory’ and ‘practice’ (metaphysics on the one side, and practical – ethical, rhetorical, political – skills, on the other). A picture of the connection between theory and practice is based on the most important parts of Metaphysics (books delta and theta), it relates metaphysical definitions (...) to an essential element of Aristotelian practical philosophy – the concept of virtue (aretê). In the practical works of Aristotle, we can find different definitions of aretê: in Nicomachean Ethics Aristotle defines aretê using the notion of disposition (hexis), but in Rhetoric he formulates a definition based on the concept of capacity. Distinctive analysis of this inconsistency shows the significance of capacity in The Stagirite’s philosophy. (shrink)

Aristotle's defense of Dunamis -- Power and potentiality -- Rational and nonrational powers -- The priority of actuality -- Ontological hierarchy, normativity, and gender.

ἔστω δὴ ἡ ῥητορικὴ δύναμις περὶ ἕκαστον τοῦ θεωρῆσαι τὸ ἐνδεχόμενον πιθανόν.(Estō dē hē rhētorikē dunamis peri hekaston tou theōrēsai to endekhomenon pithanon.)Let us define rhetoric to be "A faculty of considering all the possible means of persuasion on every subject."Rhetoric then may be defined as the faculty of discovering the possible means of persuasion in reference to any subject whatever.Rhetoric may be defined as the faculty of observing in any given case the available means of persuasion.Let rhetoric be (...) [defined as] an ability, in each [particular] case, to see the available means of persuasion.The question of rhetoric's potential continues to provoke. What appears in Aristotle's attempt to name .. (shrink)

Unconsciousness and quasiconsciousness in Plotinus -- The significance of practical ethics for Plotinus -- Action and contemplation in Plotinus -- Eternity and time -- Soul and time in Plotinus -- Reason and experience in Plotinus -- Plotinus on fate and free will -- Potentiality and the problem of plurality in the intelligible world -- Dunamis in Plotinus and Porphyry -- Plotinus and the myth of love -- The object of perception in Plotinus -- Plotinus on ideas between Plato and (...) Aristotle -- The Neoplatonic Socrates -- Porphyrian studies since 1913 -- Porphyry: scope for a reassessment -- A Porphyrian treatise against Aristotle? -- Did Porphyry reject the transmigration of human souls into animals -- Porphyry and pagan religious practice -- Religion, magic and theurgy in Porphyry -- Porphyry and the Platonic theology -- More Neoplatonic ethics -- Hypostasis and hyparxis in Porphyry -- Philosophical objections to Christianity on the eve of the Great Persecution -- Iamblichus' views on the relationship of philosophy to religion in De Mysteriis -- Further thoughts on Iamblichus as the first philosopher of religion. (shrink)

For Socrates, the virtues are a kind of knowledge, and the virtues form a unity. Sometimes, Socrates suggests that the virtues are all ‘one and the same’ thing. Other times, he suggests they are ‘parts of a single whole.’ I argue that the ‘what is x?’ question is sophisticated, it gives rise to two distinct kinds of investigations into virtue, a conceptual investigation into the ousia and a psychological investigation into the dunamis, Plato recognized the difference between definitional accounts (...) of the ousia and a psychological accounts of the dunamis, and the distinction between these two investigations can effectively resolve various interpretive puzzles regarding the unity of the virtues. It is argued that the virtues are ‘one and the same’ psychologically, while they are ‘parts of a single whole’ conceptually. (shrink)

Interpretation -- Introduction -- Interpreting Plato -- The political culture of Plato's early dialogues -- Dialogue -- Character and history -- The mouthpiece principle -- Forms of evidence -- Desire -- Socrates and eros -- The subjectivist conception of desire -- Instrumental and terminal desire -- Rational and irrational desires -- Desire in the critique of Akrasia -- Interpreting Lysis -- The deficiency conception of desire -- Inauthentic friendship -- Platonic desire -- Antiphilosophical desires -- Knowledge -- Excellence as wisdom (...) -- The epistemic unity of excellence -- Dunamis and technê -- Goodness and form -- The epistemological priority of definitional knowledge -- Ordinary ethical knowledge -- Method -- The Socratic fallacy -- Socrates' pursuit of definitions -- Hupothesis -- Two postulates -- The geometrical illustration -- Geometrical analysis -- The method of reasoning from a postulate -- Elenchus and hupothesis -- Knowledge and aitia -- F-conditions -- Cognitive security -- Aporia -- Forms of aporia -- Dramatic aporia -- The example of Charmides -- Charmides as autobiography -- The politics of Sôphrosunê -- Critias' Philotimia -- Self-knowledge and the knowledge of knowledge -- Knowledge of knowledge and knowledge of the good -- Philosophy and the polis. (shrink)

This book addresses what 'nature' is and humans' obligations toward the natural world. Beginning with ideas traced from Aristotle through some of the significant figures in European philosophy, the author shows that each living thing is a unique source of value. This value puts humans under an obligation and adopting an attitude of responsibility to living things is an essential part of what it means to be human.

What, for Galen, are powers, and how are they to be properly individuated? The notion of a power or capacity does a great deal of work in Galen. As in Aristotle, the concept of a dunamis is tightly linked with that of an energeia, but these are not simply logical abstractions. Rather the natural energeiai are the basic functional activities of the animal body and its parts, and just as health consists in proper functioning, so disease is defined as (...) ‘damage to one of the natural energeiai of the body’, and these activities are damaged when something interferes with its related dunamis. Here I try to make sense of the apparently very different things Galen says regarding dunameis. For example, he says that they do not inhabit our bodies as we do our houses; that is, presumably, they are not substantial or hypostasized; rather they are properties of us. Equally, he is perfectly clear that they are relational items: a power is a power for affecting something determinate in some determinate way. They. (shrink)

Machines are often employed in Heidegger’s philosophy as instances to illustrate specific features of modern technology. But what is it about machines that allows them to fulfill this role? This essay argues there is a unique ontological force to the machine that can be understood when looking at distinctions between techne and mechane in ancient Greek sources and applying these distinctions to a reading of Heidegger’s early thought on equipment and later thought on poiesis. Especially with respect to Heidegger’s appropriation (...) of Aristotle’s conception of dunamis, it becomes apparent from a Heideggerian perspective that machines provide an increase in capacity to its human users, but only so at a cost. This cost involves a problem of knowledge where the set of operations required in machine use results in the loss of understanding our dependency on being. The essay then concludes with a discussion of how this relation to machinic capacity is not merely pessimistic and deterministic, but indicates what might constitute a free relation to machines. (shrink)

The account of knowledge in Plato’s Theaetetus, as true belief meta logou, seems to lead to a regress, which may be avoided by defining one kind of knowledge as true belief that rests on a different kind of knowledge. I explore a specific version of this move: to define knowledge as true belief that results from a successful and proper exercise of a rational capacity (a dunamis meta logou).

"This volume offers a new translation of the Neoplatonist philosopher Simplicius' commentary on the chapters concerning place and time in Aristotle's Physics, Book Four. Written after the closing of the Athenian Neoplatonist school in A.D. 529, the commentary clarifies the structure and meaning of Aristotle's arguments and provides a rich account of 800 years of interpretation." "Surprisingly, in the first five chapters of Book Four Aristotle shows place as two-dimensional: one's place is the two-dimensional inner surface of one's surroundings. He (...) also suggests that the upward motion of air and fire and the downward motion of earth and water are partly explained by the natural places to which they tend. Place thus has power (dunamis) of its own. In his last five chapters, Aristotle argues that if time did not entail change its passage would be undetectable, and that time, by definition countable, requires the existence of conscious beings to do the counting. Among the many relevant views that Simplicius records are those of Galen, who attacks this claim, and of Eudemus, who rebuts the Pythagorean theory that history will repeat itself exactly. J. O. Urmson's translation serves as a companion to his earlier translation of the Corollaries on Place and Time, in which Simplicius sets forth his own views as distinct from those of Aristotle." "A major sourcebook for the interpretation of Aristotle, this volume will be welcomed by scholars and students in the fields of classics, ancient philosophy, ancient history, and medieval studies."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved. (shrink)

Heidegger’s thinking of the human way to be unavoidably concerns itself with a distinctive human possibility of being. It is argued here that the early Heidegger, who engaged Aristotle’s philosophy via what Heidegger calls “phenomenological interpretations,” learns from Aristotle’s method of definition but goes beyond it to conceive the idea of possibility—Dasein’s being-possible (Seinkönnen)—differently. It is reasonable to argue that the early Heidegger accomplishes a productive interpretation of Aristotle in this case while being indebted to Aristotle’s understanding of ‘definition’ as (...) both “genuinely indicative” and “indeterminate.” Despite Aristotle’s ontological commitment to a metaphysics of presence (Anwesenheit) with its linkage of “possibility-actuality” (“dunamis-energeia/entelecheia”), Heidegger appreciates that there remains an important possibility of phenomenological interpretation in both Aristotle’s concept of zóon lógon echon and the expression ‘tò tí en einai’. This interpretive move is discussed here. (shrink)

The Stoics are famously committed to the thesis that only bodies are, and for this reason they are rightly called “corporealists.” They are also famously compared to Plato’s earthborn Giants in the Sophist, and rightly so given their steadfast commitment to body as being. But the Stoics also notoriously turn the tables on Plato and coopt his “dunamis proposal” that being is whatever can act or be acted upon to underwrite their commitment to body rather than shrink from it (...) as the Giants do. The substance of Stoic corporealism, however, has not been fully appreciated. This paper argues that Stoic corporealism goes beyond the dunamis proposal, which is simply an ontological criterion for being, to the metaphysics of body. This involves, first, an account of body as metaphysically simple and hence fundamental; second, an account of body as malleable and continuous, hence fit for blending (krasis di’ holou) and composition. In addition, the metaphysics of body involves a distinction between this composition relation seen in the cosmology, and the constitution relation by which the four-fold schema called the Stoic Categories proceeds, e.g. the relation between a statue and its clay, or a fist and its underlying hand. It has not been appreciated that the cosmology and the Categories are distinct — and complementary — explanatory enterprises, the one accounting for generation and unity, the other taking those individuals once generated, and giving a mereological analysis of their identity and persistence conditions, kinds, and qualities. The result is an elegant division of Plato’s labor from the Battle of Gods and Giants. On the one hand, the Stoics rehabilitate the crude cosmology of the Presocratics to deliver generation and unity in completely corporeal terms, and that work is found in their Physics. On the other hand, they reform the Giants and “dare to corporealize,” delivering all manner of predication (from identity to the virtues), and that work is found in Stoic Logic. Recognizing the distinctness of these explanatory enterprises helps dissolve scholarly puzzles, and harmonizes the Stoics with themselves. (shrink)

The author considers the phenomenon of honor (timē) by examining Aristotle’s description of it and its role in ethical and political life. His study of honor leads him to two related phenomena, anger (orgē) and belittlement or contempt (oligōria); examining them helps him define honor more precisely. With his examination of honor the author shows how densely interwoven Aristotle’s ethical theory is; he illuminates such diverse things as the human good, political life and friendship, virtue, vice, incontinence, flattery, wealth and (...) pleasure; he shows how the metaphysical principles of dunamis and energeia are at work in human affairs; he treats the passion of anger as well as the moral attitude of contempt that provokes it, and he situates both within the study of rhetoric. (shrink)

The belief that Aristotle opposes potency (dunamis) to actuality (energeia or entelecheia) has gone untested. This essay defines and distinguishes forms of the Opposition Hypothesis—the Actualization, Privation, and Modal—examining the texts and arguments adduced to support them. Using Aristotle’s own account of opposition, the texts appear instead to show that potency and actuality are compatible, while arguments for their opposition produce intractable problems. Notably, Aristotle’s refutation of the Megarian Identity Hypothesis applies with equal or greater force to the Opposition (...) Hypothesis. For Aristotle, then, potency and actuality are compatible. (shrink)

In various texts, Aristotle assigns priority to form, in its role as a principle and cause, over matter and the matter-form compound. Given the central role played by this claim in Aristotle's search for primary substance in the Metaphysics, it is important to understand what motivates him in locating the primary causal responsibility for a thing's being what it is with the form, rather than the matter. According to Met. Theta.8, actuality [ energeia / entelecheia ] in general is prior (...) to potentiality [ dunamis ] in three ways, viz., in definition, time and substance. I propose an explicitly causal reading of this general priority claim, as it pertains to the matter-form relationship. The priority of form over matter in definition, time and substance, in my view, is best explained by appeal to the role of form as the formal, efficient and final cause of the matter-form compound, respectively, while the posteriority of matter to form according to all three notions of priority is most plausibly accounted for by the fact that the causal contribution of matter is limited to its role as material cause. When approached from this angle, the work of Met. Theta.8 can be seen to lend direct support to the more specific and explicitly causal priority claim we encounter in Met. Z.17, viz., that form is prior to matter in its role as the principle and primary cause of a matter-form compound's being what it is. (shrink)

In this chapter, the arguably most complex and most important part of Proclus’ metaphysics is under scrutiny: the One, the Henads, and the principles. The author discusses the transcendence and knowability of the One/Good, and how it can be a cause; the Iamblichean principles Limit and Unlimited, as the first coupling of unity and multiplicity, and how they invert the Aristotelian notion of dunamis. Together these principles produce ‘the mixture’, and all beings result from the triad Limit-Unlimited-Mixture. The author (...) then moves on to analysing the structure of the intelligible world in detail as an accumulation of determinations derived from these principles and the second hypothesis of the Parmenides, and to showing how the fourteen layers of the intelligible allow a rationalization of the controversial Henads, as participated forms of unity: they do not form a hypostasis in their own right, but they are all supra-essential. (shrink)

The master argument posits a metaphysical thesis: Diodorus does away with Aristotle’s dunamis understood as a power simultaneously oriented toward being and non-being and proclaims that possibilities that fail to actualize are simply nothing. My contention is that this claim is not a mere application of Diodorus’ contribution to modal logic. Rather, Diodorus creates an ontologico-temporal concept of possibility and impossibility. Diodorus envisions the future as the past that the future will become. Since what will have been can never (...) be the accomplishment of a possibility that did not obtain, and since the future is destined to become past, any futural possibility that doesn’t actualize is neither futural nor even possible. (shrink)

The alleged but unclear distinction between so-called “immanent” and so-called “transeunt” causation is structurally similar to an Aristotelian distinction between two kinds of potentiality (dunamis). It is argued that Aristotle’s distinction is in turn grounded in one between a metaphysically basic notion, rooted in his property theory, and a metaphysically posterior notion proper to the understanding of change in the science of nature. By examining Aristotle’s distinction, we can give a satisfying account of immanent and transeunt causation more generally. (...) Furthermore, once we clarify the distinction in this way, some contemporary appeals to immanent causation turn out to be misguided, while others look promising. (shrink)

The author examines a basic ontological dichotomy stated in Plato’s Timaeus. The goal is to harmonise it with the Big Bang Theory and the expansion of the Universe argumentation. Using Plato’s Vocabulary helps to combine the modern understanding of fundamental physical phenomena with Platonic philosophy. Moreover, the use of Platonic philosophy as an authoritative beginning and Platone philosophandi ratio triplex as the way to follow (méthodos) exhibits a new quality of the Big Bang theory. Specifically, the ability to combine physical (...) (primary) and existential (secondary) meanings to define critical phenomena “come to be,” “cease to be,” and “to be.” The author considers the formulated questions “What is aletheia?”, “What is there in alethes?”, “What is the phúsis of the form as the dúnamis?” and “What is dianoia of the hominin form?” as the sources of the “turning round of the psukhe” to the main question: “What is meaningful phúsis?” The issue inquiry guarantees humanity the fundamental competitive advantage in the expanding kósmos and being among the forms that come to be (gígnomai) and always is purely (ón). (shrink)

While Aristotle’s explicit focus in Metaphysics Theta 1-5 is dunamis in the sense of the ‘capability’ a thing has to originate change in something else or in itself qua other, practically all translators, when they arrive at chapter four, switch to ‘possible’ and ‘impossible’ as translations of dunaton and adunaton. Such a switch is neither defensible nor necessary and the relevance of Theta 4 is understood only without it.

Of Aristotle’s core terms, potency (dunamis) and actuality (energeia) are among the most important. But when we attempt to understand what they mean, we face the following problem: their primary meaning is movement, as a source (dunamis) or as movement itself (energeia). We therefore have to understand movement in order to understand them. But the structure of movement is itself articulated using these terms: it is the activity of a potential being, as potent. This paper examines this hermeneutic (...) circle, and works out a strategy for reading Aristotle based on his conception of our epistemological predicament. This hermeneutic approach helps us gain access to the phenomena of movement and its sources (potency, and energeia). The paper closes with a review of the conceptual resources we deploy to think about movement: homogeneity, space and time, impulse, relativity, the blend of sameness and difference, and being and non-being. Showing that Aristotle uses none of these clears the landscape for a fresh inquiry into his account of movement. (shrink)

For many, striving to attain first place in an athletic competition is explicable. Less explicable is striving to attain first place in a virtue (aretē) competition. Yet this latter dynamic appears in Aristotle’s Nicomachean Ethics. There is 4.3’s magnanimity, the crown of the virtues, which seemingly manifests itself in outdoing one’s peers in virtue. Such one-upmanship also seems operant with 9.8’s praiseworthy self-lover, who seeks to get as much of the fine (to kalon) as possible for herself. Contrary to many (...) interpreters, this paper argues that praiseworthy self-love and magnanimity involve one-upmanship. The relevant exemplars are not simply striving to be the best that they can be in respect to virtue (in virtuous activity), but to be better than others. The paper argues that Aristotle’s axiology, which sets activity (energeia) above state (hexis) and potentiality (dunamis), engenders one-upmanship. For only the level of activity substantially differentiates individuals, settling for inferiority is obviously objectionable, and equal achievement for Aristotle is not static but involves matching and surpassing the achievements of others. The paper concludes that modern discomfort with these dynamics is due to an axiology Nietzsche attributes to Christianity, one that bases human value fundamentally on non-differentiating potentiality. (shrink)

What I will argue here is that the ethical potentiality of the human being that Aristotle cites in the Nicomachean Ethics refers to the general, rational capacity for someone to appropriate and develop their own specific, natural capacities which make them human; the name of this ability is called virtue, which, when expressed in actions, we call good. To separate out the concepts at work here demands an exegesis of the two kinds of dunamis in Metaphysics Theta, that is, (...) dunamis as causal power of change and dunamis as a potential way of being for an existent capacity. Once we grasp this, we can clarify the nature of virtue as the active, complete state of a capacity in human being which defines their function even though it must be acquired, and it need not ever be actualized. The concepts of habit (ethos) and practical judgment (phronesis) give Aristotle the means to solve the problem of how such a potentiality is acquired and how it is actualized, and hence we will end with a discussion of them. -/- . (shrink)

For Aristotle, the shape of a physical body is perceptible per se (DA II.6, 418a8-9). As I read his position, shape is thus a causal power, as a physical body can affect our sense organs simply in virtue of possessing it. But this invites a challenge. If shape is an intrinsically powerful property, and indeed an intrinsically perceptible one, then why are the objects of geometrical reasoning, as such, inert and imperceptible? I here address Aristotle’s answer to that problem, focusing (...) on the version of it that he presents in De caelo III.8. I argue that if we grant that Aristotle conceived of the shape of a sensible body as some kind of causal power, then the satisfactory resolution of that challenge pushes us to interpret him as having conceived of it as being, more specifically, an impure power—that is, as a property that is not only intrinsically powerful but also, in some way, intrinsically non-powerful as well. This is a notable result not only insofar as it illuminates Aristotle’s conception of shape but also insofar as it contributes to our knowledge of Aristotle’s theory of dunameis and his ontology more broadly. (shrink)

The present volume is the successor to Dieu sans la puissance. Dunamis et energeia chez Aristote et chez Plotin (Paris, Vrin, 2006). In that book, the author examines Aristotelian metaphysics as an ontology of act-potency (energeia-dunamis). Her conclusion is that the act that is the life of the unmoved mover is pure or complete actualization, which means that it has no further actualizations. In that case, the effect of the unmoved mover as first principle of all can only (...) be as an ideal that... (shrink)