Chrysippus (c. 279–206 BCE), third scholarch of the Stoa and its most systematic architect, commands an extensive presence in the depth-psychology corpus precisely because his innovations in the theory of emotion, soul, and rational action constitute the theoretical spine against which later thinkers—Posidonius, Galen, Seneca, and moderns such as Nussbaum, Sorabji, Graver, and Inwood—orient themselves. The corpus treats Chrysippus not as a monolithic authority but as a productive site of tension: his identification of passion with mistaken judgement (rather than with an irrational soul-part) sets the terms for every subsequent debate about akrasia, therapeutic reason, and the unity of the commanding-faculty (hēgemonikon). Long and Sedley establish his foundational importance as the effective definer of ‘early Stoicism’; Sorabji and Graver interrogate his relationship to Zeno, uncovering genuine doctrinal divergence on the nature and causation of emotion; Inwood reads him as the master psychologist of rational action whose monism creates persistent explanatory strain; Nussbaum situates him within the therapeutic tradition as the theorist who makes philosophy both necessary and sufficient for emotional cure. The recurring tension is between the theoretical elegance of Chrysippus’s monism and the empirical recalcitrance of affective life—a tension Posidonius exploits and that continues to animate contemporary philosophical psychology.
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.
Long and Sedley establish Chrysippus as the definitive voice of early Stoicism, whose headship from roughly 232 to 206 BCE produced the system’s comprehensive philosophical articulation.
, The Hellenistic Philosophers, 1987thesis
In the case of passion, however, Chrysippus used ‘irrational’… to describe impulses which exceed the natural limits of reason. Their unnaturalness or irrationality, he stresses, consists in the immoderation of their movement.
Chrysippus’s core psychology locates the irrationality of passion not in a distinct soul-part but in the excess or immoderation of rational impulse itself.
, 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.
Chrysippus radicalizes Zeno by identifying passion directly with a (mis)judgement rather than treating it as a mere consequence, a move that both strengthens the monist theory and attracts Posidonius’s sharpest objections.
, The Hellenistic Philosophers, 1987thesis
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 credits Chrysippus with a near-unprecedented philosophical move in identifying emotions with value-judgements, marking a decisive break from both Platonic and Zenonean precedents.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
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 dual inheritance—emotion as erroneous judgement and emotion as akratic disobedience—contains an unresolved internal contradiction that Galen and Posidonius rightly exploit.
, 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.
Chrysippus’s own testimony in On Emotions acknowledges that distress can fade while its constituent judgement persists, a concession that strains his strict identification of passion with fresh judgement.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
Chrysippus describes emotion as involving akrasia, which Seneca renders in Latin by impotens… Zeno said that emotion is a fluttering (ptoia) of the soul.
Sorabji traces how Chrysippus inherits and develops Zeno’s concept of emotional disorder as akrasia—loss of rational self-control—while transforming its theoretical basis.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000thesis
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, following Bonhoeffer, clarifies that Chrysippus’s concept of the ‘fresh opinion’ underlying passion designates an opinion’s continued affective force rather than its mere temporal recency, countering Posidonius’s misreading.
, Ethics and Human Action in Early Stoicism, 1985thesis
passions and impulses should not be spoken of as resisting or overpowering the assent of the reason which produces them. Impulse should be, as it were, the creature of reason.
Inwood argues that Chrysippus’s monistic psychology of action logically precludes any genuine conflict between rational assent and passionate impulse, with passions constituting aberrant expressions of reason itself.
, Ethics and Human Action in Early Stoicism, 1985thesis
Chrysippus is modifying his theory to acknowledge (grudgingly, it might seem) the facts of experience… this would not be the only instance when the rigours of such an approach were modified to bring it more into line with the apparent facts of affective experience.
Inwood reads Chrysippus’s concessions regarding the fading of grief as pragmatic theoretical adjustments forced by the inadequacy of strict monism to account for lived emotional experience.
, Ethics and Human Action in Early Stoicism, 1985supporting
Seneca’s description of this third stage as overcoming reason (evicit rationem) corresponds to Chrysippus’ talk of disobeying reason and turning away from it. His ‘uncontrolled’ (impotens) corresponds to Chrysippus’ akratēs.
Sorabji demonstrates the conceptual continuity between Chrysippus’s Greek analysis of emotional akrasia and Seneca’s Latin formulation, confirming the transmission and transformation of the Chrysippean doctrine.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000supporting
distress is a fresh judgement (opinio) of present evil, in which it is seen as appropriate for the mind to be lowered and contracted. Pleasure is a fresh judgement of present good in which it is seen as appropriate to be carried away.
Sorabji reconstructs Chrysippus’s fourfold definition of the primary passions as evaluative judgements incorporating normative assessments of how the mind should respond to perceived goods and evils.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000supporting
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.
The passage presents Chrysippus’s definitive claim that all passions are activities of the unified commanding-faculty, explicitly rejecting any Platonic partition of the soul into rational and irrational parts.
, The Hellenistic Philosophers, 1987supporting
Chrysippus (and probably Zeno too) did not have a detailed theory about the gradual evolution of humans. Their interests were narrower than that… they stressed the demarcation between rational agents capable of assent and the irrational who are not.
Inwood notes that Chrysippus’s psychology is organized around the binary of rational versus irrational rather than developmental biology, explaining Posidonius’s criticism of his inadequate attention to child development.
, 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 identifies a Chrysippean definition of constitution (constitutio) as the commanding-faculty in its relation to the body, linking ontology of self to the psychology of primary impulse.
, 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 prôton oikeion is primary as a point of reference and not as essentially temporally prior.
Inwood cautions against reading temporal priority into Chrysippus’s concept of the prōton oikeion, arguing it functions as a systematic reference-point for all affiliative relations rather than a developmental stage.
, Ethics and Human Action in Early Stoicism, 1985supporting
If passions are not subrational 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 explicates the therapeutic payoff of Chrysippus’s rationalist theory: identifying passion with rational modification makes philosophy’s cognitive tools both necessary and, in principle, sufficient for emotional cure.
, 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 Epictetus’s interpretation of Medea as a figure of misguided rational attachment back to Chrysippus, illustrating the latter’s influence on Stoic literary-philosophical practice.
, The Therapy of Desire: Theory and Practice in Hellenistic Ethics, 1994supporting
Posidonius’ second complaint is that Chrysippus had supposed appetite can involve holding the conflicting beliefs that something is not advantageous or beneficial… and yet that one should take it.
Sorabji details Posidonius’s empirical objection that Chrysippus’s monistic account cannot coherently explain the simultaneous holding of contradictory beliefs characteristic of appetitive passion.
, Emotion and Peace of Mind: From Stoic Agitation to Christian Temptation, 2000supporting
in P, furthermore, we see Chrysippus’ familiarity with and concern to distinguish himself from the dialectical methods of the sceptical Academy. He will use ‘argument on the opposite side’ as an educational device, and not to induce suspension of judgement.
Long and Sedley show Chrysippus deploying dialectical argument against Academic scepticism as a pedagogical tool within an integrated Stoic philosophy, preserving commitment to assent and knowledge.
, 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.
Long and Sedley examine Chrysippus’s engagement with the Growing Argument and the puzzle of individual identity, revealing his commitment to a principle of qualitative individuation in Stoic ontology.
, 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 responds to the problem of infinite divisibility by refusing to commit to any definite partition of bodies, preserving common conceptions against paradox in Stoic physical theory.
, 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 characterize Chrysippus’s philosophical method as systematic exploration of multiple hypothetical angles rather than dogmatic adherence to a single solution, as illustrated by the cone puzzle.
, 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.
Chrysippus’s cosmological theology identifies Zeus with the rational principle of the world, drawing an analogy between cosmic conflagration and the soul’s relation to the body.
, The Hellenistic Philosophers, 1987aside
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.
Long and Sedley note Chrysippus’s divergence from Cleanthes on modal logic, affirming the necessity of all past truths as part of his broader defense of Stoic determinism against Diodorus.
, The Hellenistic Philosophers, 1987aside
Medea, too, is weak, however imposing she may appear on the stage, for she too endorses contradictory impressions as to what she should do.
Graver uses Medea as a Chrysippean case study of psychic weakness (atonia) manifested as endorsement of contradictory judgements, illustrating the structural—not faculty-based—account of emotional disorder.
, Stoicism and Emotion, 2007aside
he probably included the still more shocking justifications of incest and cannibalism attributed to Chrysippus, Republic.
Long and Sedley note that Chrysippus’s Republic contained morally provocative theses that embarrassed later Stoics seeking bourgeois respectability, echoing Zeno’s radical political philosophy.
, The Hellenistic Philosophers, 1987aside