Chrysippus (c. 279–206 BCE), the third and most systematically influential head of the Stoa, occupies a central position in the depth-psychology corpus not as a biographical subject but as the architect of a comprehensive philosophy of mind and emotion that subsequent thinkers — critics and inheritors alike — were compelled to engage. The corpus reveals three primary axes of scholarly attention. First, his identification of the passions (pathē) with erroneous judgements of the commanding-faculty (hēgemonikon) — rather than with the stirrings of a sub-rational psychic part — constitutes the defining thesis of Stoic moral psychology; Long and Sedley, Graver, Sorabji, Nussbaum, and Inwood all return to this claim repeatedly. Second, the tension between Chrysippus and his predecessor Zeno — whether emotion is a mistaken judgement or an akratic disobedience to recognized truth — generates sustained argument across Sorabji and Graver. Third, Posidonius's empirical and conceptual attacks on Chrysippean monopsychism supply a persistent counter-voice: the charge that a unitary rational soul cannot adequately account for the phenomenology of conflicting impulse, the fading of grief while belief persists, and the variability of emotional response. Together these debates make Chrysippus the unavoidable fulcrum around which Hellenistic and post-Hellenistic theories of desire, akrasia, therapy, and moral development turn.
The most important of all the Stoics, Chrysippus, was at this date an eight-year-old boy at Soli... 'early Stoicism' means for us, in effect, the philosophy of Chrysippus.
This passage establishes Chrysippus as the effective founder and systematiser of Stoic philosophy, making his thought coextensive with early Stoicism as a whole.
, The Hellenistic Philosophers, 1987thesis
Where Zeno had spoken, somewhat loosely perhaps, of judgements resulting in 'irrational movements', Chrysippus insisted that the passion itself is a judgement.
This passage articulates Chrysippus's pivotal innovation — identifying passion with judgement itself rather than as its downstream effect — and traces Posidonius's conceptual objections to this monistic position.
, The Hellenistic Philosophers, 1987thesis
According to Chrysippus' psychology, any impulse is an efficient cause of action... In the case of passion, however, Chrysippus used 'irrational'... to describe impulses which exceed the natural limits of reason.
Long and Sedley expound Chrysippus's account of passion as a rational impulse that transgresses reason's proper measure, grounding the Stoic paradox of irrational activity within a wholly rational soul.
, The Hellenistic Philosophers, 1987thesis
there is a real incompatibility between Chrysippus' account of emotion as mistaken judgement and Zeno's account of it, which Chrysippus seems to present so favourably, as akratic disobedience to recognized truth.
Sorabji argues that Chrysippus's attempt to incorporate Zeno's model of emotion as akratic disobedience into his own judgement-identity theory generates an internal contradiction that Galen's polemic legitimately exploits.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
Chrysippus was pioneering when he made emotions identical with judgements. For this there had been almost no parallel, except for Plato's suggestion... that fear is expectation of evil.
Sorabji highlights the philosophical novelty of Chrysippus's identification thesis, distinguishing it from Zeno's weaker claim that judgements are merely occasioning conditions for emotion.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
Chrysippus himself bears witness, in the second book of On Emotions, that emotions are softened (malattetai) in time, even if the beliefs (doxai) remain that something bad has come to pass.
Sorabji uses Chrysippus's own testimony in On Emotions to examine the problematic dissociation between persisting evaluative belief and the fading of affective contraction, a phenomenon that strains his monistic judgement theory.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
Chrysippus describes emotion as involving akrasia... It is Zeno's rather unexpected idea that all emotion does involve such disobedience to one's own reason, and so Chrysippus is merely following him in making all emotion involve akrasia.
Sorabji traces the concept of akrasia as it migrates from Zeno into Chrysippus's system, showing how the latter's adoption of it creates tensions with his own identification of emotion and judgement.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
distress is a fresh judgement (opinio) of present evil, in which it is seen as appropriate for the mind to be lowered and contracted... THE EMOTIONS AS VALUE JUDGEMENTS IN CHRYSIPPUS
Sorabji expounds Chrysippus's four-passion typology by showing that each passion is constituted by a value judgement carrying a normative conation — an 'appropriateness' claim — concerning expansion or contraction of the soul.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
Chrysippus is modifying his theory to acknowledge (grudgingly, it might seem) the facts of experience... his basic approach to the passions is determined by his decision to interpret them according to the general psychology of action.
Inwood argues that Chrysippus's treatment of grief-fading represents a theoretical concession forced by phenomenological fact on a psychology of action that would otherwise predict no divergence between persisting judgement and persisting impulse.
, Ethics and Human Action in Early Stoicism, 1985thesis
for both Zeno and Chrysippus, it does not refer primarily to a temporal recentness of the object about which the opinion is made, but rather to the fact that a fresh opinion is one which still has a certain kind of force for the agent.
Inwood defends the reading that 'fresh opinion' in Chrysippus designates ongoing affective force rather than mere temporal recency, against Posidonius's polemical misreading used to impute an irrational psychic power to Chrysippus.
, Ethics and Human Action in Early Stoicism, 1985thesis
appetite and anger and fear and all such things are corrupt opinions and judgements, which do not arise about just one part of the soul but are the whole commanding-faculty's inclinations, yieldings, assents and impulses.
This doxographical passage presents Chrysippus's monopsychic analysis of passion, attributing all affective states to the entire commanding-faculty rather than to a partitioned soul.
, The Hellenistic Philosophers, 1987thesis
His 'come what may', omitting 'if it is appropriate', corresponds to the description given by Chrysippus of lovers and angry people who want to be left alone 'whether it is better or not'.
Sorabji maps Seneca's three-stage anger analysis onto Chrysippus's account of akratic volition, showing structural continuity between Chrysippean and Senecan descriptions of reason-overriding emotional commitment.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000supporting
Chrysippus (and probably Zeno too) did not have a detailed theory about the gradual evolution of humans. Their interests were narrower than that... he stressed the demarcation between rational agents capable of assent and the irrational who are not.
Inwood explains why Chrysippus's psychology privileges the categorical distinction between rational and irrational agents over any gradualist developmental account, a choice that opened him to Posidonius's criticism regarding the observation of children.
, Ethics and Human Action in Early Stoicism, 1985supporting
If Chrysippus ever mentioned a primary orientation (in any sense of the word primary), it has left no trace in our sources... the pr̄oton oikeion is primary as a point of reference and not as essentially temporally prior.
Inwood's philological analysis clarifies how Chrysippus used the concept of primary appropriation (oikeiōsis) as a structural rather than chronological foundation for his ethics and theory of natural impulse.
, Ethics and Human Action in Early Stoicism, 1985supporting
Seneca gives a definition of constitutio which is almost certainly derived from Chrysippus: it is the hēgemonikon in a certain relation to the body.
Inwood locates in Seneca a definition of constitution traceable to Chrysippus, connecting the theory of self-preservation and primary impulse directly to the hēgemonikon's structural relation to the body.
, Ethics and Human Action in Early Stoicism, 1985supporting
If passions are not sub-rational stirrings coming from our animal nature, but modifications of the rational faculty, then, to be moderated and eventually cured they must be approached by a therapeutic technique that uses the arts of reason.
Nussbaum shows how the Chrysippean identification of passion with rational judgement is not merely metaphysical but therapeutic in intent, grounding the Stoic claim that philosophical argument is a fully sufficient remedy for emotional disorder.
, The Therapy of Desire: Theory and Practice in Hellenistic Ethics, 1994supporting
Epictetus, who reveres Chrysippus above all other Stoic writers and thoroughly knows his work, gives us an account of his own interest in Medea that may well derive from Chrysippus himself.
Nussbaum traces the Stoic reading of Medea as a case of misdirected great-souled attachment back through Epictetus to Chrysippus, illuminating how literary examples functioned in Chrysippean moral psychology.
, The Therapy of Desire: Theory and Practice in Hellenistic Ethics, 1994supporting
Chrysippus regarded all dialectic as integral to the whole of Stoicism. In practice his enormous output in technical logic must have seemed dubiously relevant to Stoicism as a way of life.
Long and Sedley note the tension between Chrysippus's theoretical integration of dialectic into Stoicism's philosophical system and the practical irrelevance of his prodigious technical-logical production to the Stoic way of life.
, The Hellenistic Philosophers, 1987supporting
It was characteristic of Chrysippus to explore a question again and again from different angles and to experiment with alternative solutions.
Long and Sedley characterise Chrysippus's philosophical method as one of hypothetical multi-perspectival investigation, defending him against Plutarch's charge of self-contradiction in his treatment of the continuum.
, The Hellenistic Philosophers, 1987supporting
Chrysippus assumes both the validity of the opening steps of the argument and the truth of the principle that two peculiarly qualified individuals cannot occupy the same substance at the same time.
This passage examines Chrysippus's engagement with the Growing Argument, showing how his commitment to the principle of individual identity shaped his solution to puzzles about personal identity through material change.
, The Hellenistic Philosophers, 1987supporting
Chrysippus says that when asked if we have parts, and how many... we must say neither of what parts we consist, nor, likewise, of how many, either infinite or finite.
Chrysippus's response to the puzzle of bodily composition illustrates his strategy of preserving common conceptions by refusing to commit to either finitism or infinitism about the parts of a body.
, The Hellenistic Philosophers, 1987supporting
all past truths are necessary, as Chrysippus holds contrary to the view of his teacher Cleanthes, because past facts are immutable and cannot change from true to false.
This passage records Chrysippus's distinctive modal thesis — the necessity of all past truths — as part of his broader dispute with Diodorus over the scope of possibility and its implications for fate and foreknowledge.
, The Hellenistic Philosophers, 1987supporting
Chrysippus says that Zeus and the world are like a man and providence like his soul, so that when the conflagration comes Zeus, being the only imperishable one among the gods, withdraws into providence.
This passage reveals Chrysippus's cosmological theology, identifying Zeus with the world and providence with its rational soul, a doctrine that illustrates the deep integration of theology and psychology in his system.
, The Hellenistic Philosophers, 1987supporting
the passion itself (i.e. the impulse) is the product of the assent or judgement to a certain kind of presentation... a conflict between reason as it gives assent and generates an impulse and the impulse itself should not be possible.
Inwood clarifies the structural entailment of Chrysippean monopsychism: because impulse is the product of rational assent, the very concept of a conflict between reason and passion is internally incoherent on Chrysippus's own terms.
, Ethics and Human Action in Early Stoicism, 1985supporting
Someone might say, on Chrysippus' behalf, that it depends on an estimate of size — how big the good or evil appears — or on weakness of soul. But the expected correlations, he complains, are simply unavailable.
Sorabji relays Posidonius's empirical objection that Chrysippus's monistic account fails to predict the actual variability of emotional response across individuals with identical judgements and equal weakness of soul.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000supporting
he probably included the still more shocking justifications of incest and cannibalism attributed to Chrysippus, Republic.
Long and Sedley note in passing the provocative moral positions attributed to Chrysippus in his Republic, which embarrassed later Stoics who had accommodated themselves to bourgeois convention.
, The Hellenistic Philosophers, 1987aside
He [Chrysippus] defines rhetoric as an expertise concerned with the order of continuous speech.
Plutarch's report records Chrysippus's definition of rhetoric as part of the Stoic classification of the philosophical disciplines, contrasting their emphasis on dialectic with relative neglect of inventional topics.
, The Hellenistic Philosophers, 1987aside
I shall not go into the various refinements of Chrysippus on the doctrine of disease in the soul.
Inwood acknowledges in passing the elaborateness of Chrysippus's typology of psychic disease without entering into its details, signalling the depth of his systematic work on pathological soul-states.
, Ethics and Human Action in Early Stoicism, 1985aside