Aristotle: On the Soul

Does Aristotle offer a definition of the soul? In fact, he rejects the possibility of defining the soul univocally. Because “life” is a homonymous concept, so too is “soul”. Given the specific causal role that Aristotle envisages for form and essence, the soul requires multiple different definitions to capture how it functions as a cause in each form of life. Aristotle suggests demonstrations can be given which express these causal definitions; I reconstruct these demonstrations in the paper.

Aristotle's On the Soul aims to uncover the principle of life, what Aristotle calls psuchē. For Aristotle, soul is the form which gives life to a body and causes all its living activities, from breathing to thinking. Aristotle develops a general account of all types of living through examining soul's causal powers. The thirteen new essays in this Critical Guide demonstrate the profound influence of Aristotle's inquiry on biology, psychology and philosophy of mind from antiquity to the present. They deepen (...) our understanding of his key concepts, including form, reason, capacity, and activity. This volume situates Aristotle in his intellectual context and draws judiciously from his other works as well as the history of interpretation to shed light on his intricate views. It also highlights ongoing interpretive debates and Aristotle's continuing relevance. It will prove invaluable for researchers in ancient philosophy and the history of science and ideas. (shrink)

In De Anima II.6, Aristotle divides the objects of perception into three kinds: “special perceptibles" (idia aisthêta) such as colours, sounds and flavours, which can be perceived in their own right by only one sense; “common perceptibles" (koina aisthêta) such as shapes, sizes and movements, which can be perceived in their own right by multiple senses; and “incidental perceptibles,” such as the son of Diares, which can be perceived only “incidentally” (kata sumbebêkos). In this paper, I examine this division of (...) perceptibles and consider what it amounts to. First, I argue that Aristotle’s distinction between perceiving something in its own right (kath' hauto) and perceiving it incidentally marks a causal distinction: what is perceived in its own right causes perception as such, whereas what is perceived incidentally coincides with what is perceived in its own right. Second, I argue that for Aristotle special perceptibles, unlike common perceptibles, belong to homogeneous bodies on account of their chemical composition. Finally, I explain the primacy Aristotle assigns to special perceptibles and his claim that perception of them alone is free from error. I conclude with some brief remarks on Aristotle and the primary/secondary quality distinction. (shrink)

Even though Aristotle speaks often about language, his remarks do not fall within the province of any given discipline, let alone belong to the same subject matter or amount to a πραγματεία of their own. Rather, they are somewhat scattered across the Aristotelian corpus and are to be gleaned from a vast array of texts, including ethical and political writings (where language plays a remarkable role in shaping human sociability), treatises on natural history (where Aristotle outlines the physiology of phonation (...) in some animals such as birds and human beings), books on the soul (where Aristotle describes how language is intertwined with perception, imagination and thought) and works on dialectics, poetics and rhetoric (where linguistic expression is described as a powerful means of both persuasion and deception). Accordingly, «Le langage. Lectures d’Aristote» elects to study Aristotle’s understanding of language and its workings by asking relevant Aristotelian texts only those questions these texts answer – either by themselves or in conjunction with one another. -/- Quelque nombreuses et quelque influentes qu'elles soient par ailleurs, les vues d'Aristote sur le langage se caractérisent à la fois par leur hétérogénéité et par leur marginalité. Sans faire nulle part du langage et de la signification l'objet d'une investigation autonome et méthodique, Aristote multiplie les remarques et les digressions à leur sujet, que ce soit dans ses écrits d'éthique et de politique ou dans ses traités d'histoire et de philosophie naturelle, ou encore dans ses manuels de dialectique, de poétique et de rhétorique. Face à l'abondance de ces matériaux et aux difficultés qu'ils présentent du fait de s'offrir au lecteur en ordre quelque peu dispersé, «Le langage. Lectures d'Aristote» fait le choix d'indexer l'étude du langage chez Aristote sur des passages précis du corpus en ne posant aux textes aristotéliciens d'intérêt linguistique que les questions auxquelles ces mêmes textes - tantôt pris isolément, tantôt mis en relation les uns avec les autres - apportent une réponse. (shrink)

In De Anima 2.4, Aristotle claims that nutritive soul encompasses two distinct biological functions: nutrition and reproduction. We challenge a pervasive interpretation which posits ‘nutrients’ as the correlative object of the nutritive capacity. Instead, the shared object of nutrition and reproduction is that which is nourished and reproduced: the ensouled body, qua ensouled. Both functions aim at preserving this object, and thus at preserving the form, life, and being of the individual organism. In each case, we show how Aristotle’s detailed (...) biological analysis supports this ontological argument. (shrink)

This essay considers three case studies of Aristotle’s use of matter, drawn from three different scientific contexts: menstrual fluid as the matter of animal generation in the Generation of Animals, the living body as matter of an organism in Aristotle’s On the Soul (De Anima), and the matter of elemental transformation in Generation and Corruption. I argue that Aristotle conceives of matter differently in these treatises (1) because of the different sorts of changes under consideration, and (2) because sometimes he (...) is considering the matter for one specific change, and sometimes the matter for all of a thing’s natural changes. My account allows me to explain some of the strange features that Aristotle ascribes to the matter for elemental transformation in Generation and Corruption II. These features were interpreted by later commentators as general features of all matter. I argue that they are a result of the specific way that Aristotle thinks about the transmutation of the elements. (shrink)

The soul is an explanatory principle of Aristotle’s natural science, accounting both for the fact that living things are alive as well as for the diverse natural attributes that belong to them by virtue of being alive. I argue that the explanatory role of the soul in Aristotle’s natural science must be understood in light of his view, stated in a controversial passage from Parts of Animals (645b14–20), that the soul of a living thing is a “complex activity” of its (...) organic body. This paper explores the role of this “complex activity” model of soul in Aristotle’s study of soul in De Anima. I argue, first, that the model has its origins in De Anima II.4, where Aristotle argues that living things do all they do by nature for the sake of a single, teleologically primary end. I argue further that Aristotle uses this model to account for the psychological attributes naturally present in living things, including their capacities for vital activities like nutrition, reproduction, and perception, and that this is the task to which Aristotle devotes the obscure final chapters of De Anima III. (shrink)

In this work I propose a theory of evolution as a process of unfolding. This theory is based on four logically concatenated principles. The principle of evolutionary order establishes that the more complex cannot be generated from the simpler. The principle of origin establishes that there must be a maximum complexity that originates the others by logical deduction. Finally, the principle of unfolding and the principle of actualization guarantee the development of the evolutionary process from the simplest to the most (...) complex. These logical principles determine the existence of a virtual ideological matrix that contains the sequence of the preformed and folded morphogenetic fields. In this manner, the evolutionary process consists of the sequential unfolding and actualization of these fields, which is motorized by a process of teleologization carried out by the opening consciousness of the forms included in the fields of the ideological matrix. This theory leads to a radical change of perspective regarding the materialist worldview, and places life at the center of the evolutionary process as an activity carried out by a consciousness that seeks to fulfill a purpose by actualizing its own potentialities. (shrink)

This paper examines Aristotle’s analysis of unenacted capacities to show the role they play in his discovery of the concept of actuality. I first argue that Aristotle begins Metaphysics IX by focusing on active and passive capacities, after which I discuss Aristotle’s confrontation with the Megarians, the philosophers who maintain that a capacity is present only insofar as it is being enacted. Using Heidegger’s interpretation as a guide, I show that Aristotle’s rejection of the Megarian position leads him to propose (...) that presence cannot be confined to activity. I also argue that this provides the context for Aristotle to realize that the relation between capacity and activity can be generalized as the relation between two ways of being. (shrink)

I argue that a common interpretation of DA 3.4, which sees Aristotle as there rejecting Anaxagoras’s account of mind, is mistaken. Instead, I claim that, in providing his solution to the main puzzles of this chapter, Aristotle takes special care to preserve the essential features that he thinks Anaxagoras ascribes to mind, namely, its ability to know all things, its being unmixed, and its inability to be affected by mixed objects.

Aristotle, De Anima: Translation, Introduction, and Commentary. By Shields Christopher.

This article considers whether and how there can be for Aristotle a genuine science of ‘pure’ psychology, of the soul as such, which amounts to considering whether Aristotle’s model of science in the Posterior Analytics is applicable to the de Anima.

In the ongoing ‘brain death’ controversy, there has been a constant push for the use of the ‘higher brain’ formulation as the criterion for the determination of death on the grounds that brain-dead individuals are no longer human beings because of their irreversible loss of consciousness and mental functions. This essay demonstrates that such a position flows from a Lockean view of human persons. Compared to the ‘consciousness-related definition of death,’ the substance view is superior, especially because it provides a (...) holistic vision of the human person, and coheres with the perennial axiom about the ‘whole and parts.’. (shrink)

The Middle Included is a systematic exploration of the meanings of logos throughout Aristotle’s work. It claims that the basic meaning is “gathering,” a relation that holds its terms together without isolating them or collapsing one to the other. This meaning also applies to logos in the sense of human language. Aristotle describes how some animals are capable of understanding non-firsthand experience without being able to relay it, while others relay it without understanding. Aygün argues that what distinguishes human language, (...) for Aristotle, is its ability to both understand and relay firsthand and non-firsthand experiences. This ability is key to understanding the human condition: science, history, news media, propaganda, gossip, utopian fiction, and sophistry, as well as philosophy. Ömer Aygün finds Aristotle’s name for this peculiar but crucial human ability of “gathering” both experiences is logos, and this leads to a claim about the specificity of human rationality and language. (shrink)

The purpose of the paper is to discuss Aristotle’s account of homonymy. The major thesis advocated here is that Aristotle considers both entities and words to be homonymous, depending on the object of his criticism. Thus, when he takes issue with Plato, he tends to view homonymy more ontologically, upon which it is entities that become homonymous. When, on the other hand, he gainsays the exegetes or the sophists, he is inclined to perceive homonymy more semantically, upon which it is (...) words that become homonymous. Subsequently, this article shows that Aristotle values homonymy negatively in dialectical discussions, but positively in rhetorical and poetic arts. Finally, the present paper demonstrates that Aristotle regards systematic homonymy as a very useful theoretical tool that makes it possible to critically examine the basic terminological assumptions of any philosophical inquiry. (shrink)

This dissertation focuses on the philosophical psychology of a little-studied author, Dominic of Flanders, as elaborated upon in a work that has received no attention in the scholarly literature thus far—viz., his Expositio super libros de anima. No modern editions of Dominic’s works exist. Born in the County of Flanders during the first half of the fifteenth century, Dominic was first educated at the University of Paris, but then made his intellectual home in Italy, where he entered the Dominican Order, (...) teaching at the studia of his order, as well as at the University of Florence. This study attempts to place Dominic within the broader context of Aristotelianism to which he belongs, recognizing his place within the school of Thomism that was thriving in Italy at the time, especially in Bologna. We have provided an account of his life and works, exhaustively examining available bibliographical literature, and have situated the composition of his Expositio during his period of Bologna following his entrance into the Order. In particular, we have studied the third book of his Expositio, which takes up the philosophical topics related to cognition and intellectual understanding. We have given attention to the themes of the cognition or knowledge of particulars, as well as the theory of abstraction, which is required for universal understanding. Beyond the fact that the theory of the internal senses is taken up at the outset of Dominic’s third book, it is our contention that a treatment of the internal senses is necessary for a proper understanding of particular knowledge. Dominic is firmly rooted in the Aristotelian tradition, and so for him there is no intellectual cognition without phantasms. Further, the role of the agent intellect is both to abstract from phantasms, as well as to turn back towards phantasms. In this study, we have shown the Flemish master’s reliance upon the thought and writings of Thomas Aquinas; we also have uncovered a silent source of Dominic’s Expositio—viz., the De anima commentary of John Versoris. Versoris’ commentary has been equally unstudied in the relevant scholarly literature. This Versoris had been Dominic’s teacher at Paris. The results of this research also include an edition of Latin text of the third book of Dominic’s Expositio super libros de anima. This edition is based on the four surviving manuscripts of the work, as well as three selected early modern editions ; this edition is presented in the dissertation as an appendix. (shrink)

Is life a simple result of a conjunction of physico-chemical processes? Can be reduced to a mere juxtaposition of spatially determined events? What epistemology or world-view allows us to comprehend it? Aristotle built a novel philosophical system in which nature is a dynamical totality which is in constant movement. Life is a manifestation of it, and is formed and governed by the psyche. Psyche is the organizational principle of the different biological levels: nutritive, perceptive and intelective. Driesch's crucial experiment provided (...) empirical proof of the principle of life, which he called entelechy. Entelechy is an intensive manifoldness and cannot be comprehended by the usual extensive parameters. The entelechian's own ambiance is duration. This allows the reintroduction of the concept of teleology in the sphere of the living, understood not as a final cause, but as an order born from desire and leading to action. (shrink)

In Mortal Imitations of Divine Life, Diamond offers an interpretation of De Anima, which explains how and why Aristotle places souls in a hierarchy of value. Aristotle’s central intention in De Anima is to discover the nature and essence of soul—the prin­ciple of living beings. He does so by identifying the common structures underlying every living activity, whether it be eating, perceiving, thinking, or moving through space. As Diamond demonstrates through close readings of De Anima, the nature of the soul (...) is most clearly seen in its divine life, while the embodied soul’s other activi­ties are progressively clearer approximations of this principle. This interpretation shows how Aristotle’s psychology and biology cannot be properly understood apart from his theological conception of God as life, and offers a new explanation of De Anima’s unity of purpose and structure. (shrink)

My topic is the fundamental Aristotelian division between the animate and the inanimate. In particular, I discuss the transformation that occurs when an inanimate body comes to be ensouled. When nutriment is transformed into flesh it is first changed into blood. I argue that blood is unique in being, at one and the same time, both animate and inanimate; it is inanimate nutriment in actuality (or in activity) and animate flesh in potentiality (or in capacity). I provide a detailed exposition (...) of these manners of being (covering individual substances, artifacts, and mixtures), apply these insights to the case of blood, and then argue that blood's curious status is central to understanding hylomorphism in living organisms. (shrink)

: In Parts of Animals II.10, 655b37-656a8, Aristotle tacitly identifies a group of animals which partake of “ living only”. This paper is an attempt to understand the nature of this group. It is argued that it is possible to make sense of this designation if we consider that some animals, which are solely endowed with the contact senses, do nothing more than mere immediate nutrition by their perceptive nature and have no other action. It is concluded that some of (...) Aristotle ’s merely living animals would be certain kinds of sponge, certain sea anemones and the ascidians among testacea. (shrink)

Aristotle’s treatment of tactility is at odds with the hierarchical order of psyche’s faculties. Touching is the commonest and lowest power; it is possessed by all sentient beings; thinking is, on the contrary, the highest faculty that distinguishes human beings. Yet, while Aristotle maintains against some of his predecessors that to think is not to sense, he nevertheless posits a causal link between practical intelligence and tactility and even describes noetic activity as a certain kind of touch. This essay elucidates (...) Aristotle’s analysis of the sense of touch in De anima and argues that tactility provides a paradigm for sensitivity in general and in particular for the reflexivity of sensation whereby the senses disclose not only what they are sensing but also that they are sensing. This feature, it is argued, has epistemological and ontological consequences. The sense of touch testifies to the physical presence of material beings and provides an empirical verification of substance’s essential feature, namely, self-reference. (shrink)

Aristotle's theory of intellect is notoriously difficult, due basically to the scarcity of textual evidence. It has therefore always been controversial and often subject to the systematic biases of its interpretators. In order to provide a fresh and objective perspective on the text itself this book offers a detailed study of the fundamental text, Aristotle's De anima III 4-5, by giving an improved Greek text, extensive commentary, and discussion. An examination of several other important Aristotelian passages on the intellect is (...) also included. The analysis shows that Aristotle distinguishes clearly between the active and the passive intellect, but that the active intellect is not actively involved in cognitive processes, such as abstraction, but the pure principle of actuality in the soul. On this basis ancient and medieval commentators identified the human and divine intellects. (shrink)

Aristotle has qualms about the movement of the soul. He contends directly, indeed, that ‘it is impossible that motion should belong to the soul’ (DA 406a2). This is surprising in both large and small ways. Still, when we appreciate the explanatory framework set by his hylomorphic analysis of change, we can see why Aristotle should think of the soul's motion as involving a kind of category mistake-not the putative Rylean mistake, but rather the mistake of treating a change as itself (...) capable of changing. (shrink)

One of Thomas Aquinas’s primary philosophical concerns is to provide an account of the nature of a human soul. He bases his account on Aristotle’s De anima, wherein Aristotle gives an account of “soul” (psuchē) as divided into three distinct types: vegetative, sensitive, and intellective. Aristotle defines an intellective soul as proper to human beings and the only type of soul that may potentially exist separated from a material body. Aquinas argues that an intellective soul is indeed separable from its (...) body and conceives of it as essentially, or unqualifiedly (simpliciter), immortal and separable from its body, and relatively (secundum quid) mortal and conjoined to its body. Pietro Pomponazzi (1462-1525), a Renaissance philosopher concerned with ridding neo-Aristotelianism of Platonic or Averroistic influences, criticizes Aquinas’s account as not being properly Aristotelian and having been influenced by Platonism. In this paper, I will present summaries of Aquinas’s arguments concerning an intellective soul’s essential immortality, as well as Pomponazzi’s criticisms of Aquinas’s position. I then propose ways in which Aquinas may respond to these criticisms. (shrink)

A discussion of De anima 3.3 designed to show that phantasia serves to prevent a dualism of different objects for perception and thought, and ensures that attention is directed to real objects in the world, for both animals and humans. when they perceive and when they think about things in their absence. There is a continuity between animal and human behaviour, based on the common use of perceptual attention as the basis of mental attention. The objects of thought are not (...) any more propositional or conceptual than the things that both humans and animals encounter and engage with in normal behaviour. (shrink)

Translation of passages of Aristotle's De Anima into Portuguese. The passages are these: I.1, I.4 (the 'Rylean passage'); II.1-6; III.1-8. The translation is preliminary.

This collection consists of a two-part Introduction by the editors Martha Nussbaum and Amelie O. Rorty ; nineteen articles, mostly published here for the first time, by M. F. Burnyeat, Nussbaum and Hilary Putnam, S. Marc Cohen, Jennifer Whiting, Michael Frede, K. V. Wilkes, Alan Code and Julius Moravcsik, G. E. R. Lloyd, Charlotte Witt, Gareth B. Matthews, Richard Sorabji, Cynthia Freeland, Malcolm Schofield, Dorothea Frede, Julia Annas, Franz Brentano, L. A. Kosman, Charles Kahn, and Henry S. Richardson ; an (...) extremely useful Bibliography of works cited in these twenty chapters with important additions; an Index Locorum; and a Name Index. (shrink)

In this paper I argue that Leibniz' (L.) concept of entelechy, though L. himself believes to have derived it directly from Aristotle, does not correspond exactly to the Aristotelian concept. The main difference between the Aristotelian and the Leibnizian concept may be explained as follows: Whereas Aristotle uses "entelecheia" to designate a property possessed by living organisms, L. takes it to be a generic term for souls and other monads. It is further argued that Aristotle's somewhat intricate argument in De (...) Anima II 1 has contributed to the misunderstanding of the Aristotelian term, a misunderstanding starting already with the Aristotelian commentators Themistius, Philoponus and Simplicius. L. took his concept from the tradition of the commentators which he knew through the Italian humanist Ermolao Barbaro. (shrink)

The physicist defines anger in terms of heart, blood, and heat; the dialectician says it is the desire to inflict pain in retaliation. Both give fairly sure signs for its recognition; but neither can show why these signs must go together and in what they can cohere. Aristotelian physics is presumably a way to avoid such a split, and whatever defects his account of perception or intellection suffers from cannot be traced to it. Phantasia, however, seems to be dialectically distinguished (...) from other faculties of soul and physically defined as a kind of motion; and even if Aristotle could say at what speed it moves, we do not discern in such a definition the ground for its being the link between perception and intellection. The soul is the source of both motion and awareness; and since it cannot be the efficient cause of motion without destroying the possibility of awareness, something in its cognitive capacity must be able to translate the nonmotivating acts of perception or of intellection into causes of motion. That something seems to be again phantasia, which thus comes to light as the soul’s double bond, linking the aesthetic with the noetic and awareness with motion. Phantasia is as inseparable from desire as it is from thought. It is the closest Aristotle comes to acknowledging that self-moving motion is soul. (shrink)

Please note, this is the original Greek text.

Hicks' edition of the De Anima contains valuable commentary from Hicks as well as useful summaries of the views of earlier commentators.