Aristotle occupies a foundational position in the depth-psychology corpus, functioning not as a historical curiosity but as an active conceptual interlocutor across millennia of debate about soul, desire, emotion, and rational agency. The corpus engages him on at least four distinct fronts. First, his hylomorphic theory of soul — the proposition that soul is the form of a living body — grounds a naturalistic psychology that subsequent traditions either inherit, resist, or reinterpret; the De Anima commentators from Theophrastus through Alexander and Philoponus elaborated, distorted, and transmitted this framework. Second, his tripartite account of desire (orexis, boulesis, epithumia) and his careful subordination of reason to rational desire provided the Stoics and later ethicists with a model to contest or refine. Third, Nussbaum's extended engagement demonstrates that Aristotle's 'method of appearances' (phainomena) constitutes a rival epistemology to Platonic idealism, one that finds truth within human experience rather than beyond it. Fourth, his analyses of specific emotions — pity, anger, shame, and their cognitive conditions — in the Rhetoric became the indispensable reference point for ancient and modern accounts of affect. The persistent tension in the corpus is between readings that assimilate Aristotle to post-Cartesian consciousness theories and those that insist on his irreducible naturalism.
In the library
22 substantive passages
Aristotle's theory of animation amounts to the claim that particular living things... can... be analysed into their Form and their Matter, but that in the exceptional case of living things their Form can be identified with the traditional concept of their soul.
This passage articulates the hylomorphic core of Aristotle's psychology: soul as the form of living bodies, the foundational thesis of the De Anima and the primary reference point for all subsequent naturalistic psychology.
Aristotle's extremely valuable remarks on what he is trying to talk about have often been ignored in favour of the attempt to extract from his words some answer to questions arising out of quite different debates to which his line of inquiry is in fact only tangentially relevant.
The passage argues that Aristotle's psychological project has been systematically misread — especially regarding the immortality of the soul and post-Cartesian ontology of consciousness — and must be understood on its own methodological terms.
The move which Aristotle made in adapting this primary model to the case of human beings was to posit a separate power in the souls of men, reason... moral improvement can be seen as turning in part on the battle between these two forces.
Inwood identifies Aristotle's introduction of reason as a distinct desiderative power as the structural innovation that generates the problem of akrasia and establishes the dualism between animal and rational self that the Stoics inherited.
Brad Inwood, Ethics and Human Action in Early Stoicism, 1985thesis
Aristotle promises a return from the search for external justification to an internality that is deeply rooted in Greek tradition... He insists that he will find his truth inside what we say, see, and believe.
Nussbaum argues that Aristotle's method of phainomena constitutes a deliberate philosophical alternative to Platonic transcendence, grounding ethical truth in human experience and ordinary appearance rather than external ideal standards.
Martha C. Nussbaum, The Fragility of Goodness: Luck and Ethics in Greek Tragedy and Philosophy, 1986thesis
Aristotle gave a strong impetus to the idea of will as a desire, so distinct from reason, but none the less belonging with reason as rational. In two passages Aristotle treats boulēsis as belonging to the rational part of the Platonist soul.
Sorabji locates Aristotle as the pivotal figure in the history of the concept of will, showing how his account of boulesis as a rational yet desiderative capacity restructured Platonic psychology and shaped all subsequent theories of volition.
Richard Sorabji, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
'Affections suitably prepare the organic parts, desire (ὄρξις) [sc. suitably prepares] affections, phantasia [sc. suitably prepares] desire; and phantasia arises through thought (νήσι) or through perception' (De Motu Animalium 8, 702a 17–19).
Lorenz uses Aristotle's chain-of-movers passage to demonstrate the systematic relationship between phantasia, desire, and locomotion in Aristotle's psychology of animal and human motivation.
Hendrik Lorenz, The Brute Within: Appetitive Desire in Plato and Aristotle, 2006thesis
It was almost certainly they who added to the concepts of the active and passive intellects the notions of the mind in potentiality and the mind in actuality, which were destined to prove the foundation of an impressive scholastic edifice.
The passage traces how Theophrastus and his Peripatetic successors elaborated Aristotle's treatment of intellect, introducing the potentiality/actuality distinction that became the cornerstone of medieval scholastic psychology.
Aristotle stresses that while in actuality the sense-object exists in the subject, it exists in potentiality outside in the world. It cannot, then, be a hallmark of the sense-object as such, as Brentano needs it to be, that it exists only in the individual.
This passage refutes Brentano's appropriation of Aristotelian intentionality by demonstrating that Aristotle's account of sensation is incompatible with the claim that sense-objects exist exclusively in the mind.
Aristotle sees very clearly the dangers of the apparently attractive parallel between somatic and psychological states which had stood Plato in such good stead in his attacks on the 'immoralists'.
Adkins argues that Aristotle's ethics departs from Plato's by refusing to reduce moral improvement to a merely somatic model, thereby preserving an irreducible role for intention and rational deliberation in the achievement of eudaimonia.
Arthur W.H. Adkins, Merit and Responsibility: A Study in Greek Values, 1960supporting
Aristotle says that dreams are caused by echoes of emotionally charged sense perceptions from our daily lives... the problems begin, Aristotle says, when we fail to distinguish those internal echoes from the external objects.
Bulkeley presents Aristotle's dream theory as a proto-psychological account in which the emotionally charged residues of waking perception create illusory inner objects during sleep, anticipating later theories of intrapsychic imagery.
Bulkeley, Kelly, An Introduction to the Psychology of Dreaming, 2017supporting
There is no organ of thought (De Anima 3.4, 429a 24–7), and no change of any sort stands to the activity of thought as matter to form. Thought, on Aristotle's view, is a strictly immaterial activity.
Lorenz underscores the asymmetry in Aristotle's psychology between the strictly immaterial activity of thought and the embodied, locomotion-tied system of phantasia and perception, marking the limit of his naturalism.
Hendrik Lorenz, The Brute Within: Appetitive Desire in Plato and Aristotle, 2006supporting
Aristotle stipulates, as we have seen, that pity is elicited by an undeserved evil of the sort that 'one might expect oneself, or one of one's own, to suffer.'
Konstan analyzes Aristotle's cognitive-evaluative definition of pity, showing how the requirement of personal vulnerability as a condition for the emotion distinguishes Aristotelian affect theory from mere sentimentalism.
David Konstan, The Emotions of the Ancient Greeks: Studies in Aristotle and Classical Literature, 2006supporting
The offender seeks no personal advantage. The only explanation for such a gratuitous hindrance of another's wishes, according to Aristotle, is that one neither fears him nor seeks his friendship; he is thus useless, either for good or ill, which is just Aristotle's definition of worthlessness.
This passage expounds Aristotle's analysis of spite (eperéasmos) within his taxonomy of the types of slight that generate anger, illustrating how his emotion theory is structurally dependent on social cognition and status evaluation.
David Konstan, The Emotions of the Ancient Greeks: Studies in Aristotle and Classical Literature, 2006supporting
Aristotle's theory of catharsis is, of course, a reply. Tragedy does good because it effects catharsis of such emotions.
Sorabji presents Aristotle's catharsis doctrine as a direct therapeutic response to Plato's critique of tragic poetry, arguing that the purgation of pity and grief justifies tragedy's psychological and civic value.
Richard Sorabji, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000supporting
It is noteworthy that Aristotle does not use the expression noesis noeseos at 4.291326 f, and this perhaps calls into question the extent to which we should treat the discussion in Metaphysics Lambda as relevant here.
The passage raises a precise textual issue about the relationship between De Anima's treatment of intellect and the Metaphysics concept of self-thinking thought, questioning standard scholastic conflations.
At E.N. 1130a8, Aristotle can say that dikaiosune in the general sense... is 'the whole of arete'; and at 1129a9 he quotes Theognis' 'the whole of arete is summed up in dikaiosune'... it is evident from the rest of the Ethics and Politics that Aristotle's views as a whole prevent dikaiosune from assuming this position.
Adkins examines the internal tension in Aristotle's ethical writing between passages that appear to elevate justice to supreme virtue and the broader systematic position in the Ethics and Politics that resists such reduction.
Arthur W.H. Adkins, Merit and Responsibility: A Study in Greek Values, 1960supporting
Even here Aristotle would insist that the theory must return to and account for our original experiences.
Nussbaum identifies the revisability-yet-accountability-to-experience principle as a structural feature of Aristotle's methodology in both science and ethics, distinguishing it from purely a priori theorizing.
Martha C. Nussbaum, The Fragility of Goodness: Luck and Ethics in Greek Tragedy and Philosophy, 1986supporting
Bios in Aristotle always means a total way or mode of life.
This philological note clarifies the ethical weight of bios in Aristotle's Poetics and Ethics, demonstrating that action and its evaluation must be understood in terms of complete human lives rather than isolated episodes.
Martha C. Nussbaum, The Fragility of Goodness: Luck and Ethics in Greek Tragedy and Philosophy, 1986supporting
There persists a certain confusion about the classification of imagination among the mental faculties. It is sometimes looked on as a species of thought collateral with supposition, and sometimes is itself divided into a rational and irrational part.
This editorial note flags the unresolved tensions in Aristotle's own treatment of phantasia, noting that its classificatory status relative to thought and perception remains genuinely underdetermined in the De Anima.
The akrates certainly does not act as a result of agnoia, for his action would then be akousion, which Aristotle categorically does not believe.
Adkins examines Aristotle's account of the akratic agent's relationship to ignorance, arguing that the distinction between acting in ignorance and acting from ignorance is philosophically strained but morally significant within the Nicomachean Ethics.
Arthur W.H. Adkins, Merit and Responsibility: A Study in Greek Values, 1960aside
Aristotle explains, in his own way — that is, from a rationalist point of view — the phenomenon of the arrest or abolition of time at the oracle of Sardes, when the consultants stretch themselves out to sleep next to the tombs of the heroes.
Vernant cites Aristotle's rationalist reinterpretation of oracle-related time suspension as an instance of his systematic demythologization of religious phenomena in the Physics.
Vernant, Jean-Pierre, Myth and Thought Among the Greeks, 1983aside
Aristotle at one point in the Nicomachean Ethics (1128b12-13) says of aidos: 'It is defined as a kind of fear [phobos] of disgrace [adoxia]' — or at least, he adds, it is something like fear [paraplesion] — and as a species of fear it ought, in Aristotle's terms, to be an emotion.
Konstan uses Aristotle's hesitant classification of aidos as fear-adjacent to probe the ambiguous status of shame as emotion versus disposition in his theory of the passions.
David Konstan, The Emotions of the Ancient Greeks: Studies in Aristotle and Classical Literature, 2006aside