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Impulse & Assent

The Stoic anatomy of every action: an impression appears, reason says 'yes,' and that assent fires the impulse to act.

Impulse (horme) and assent (synkatathesis) are the gears of Stoic action theory (early Stoa, 3rd c. BCE). An impression presents something as worth doing; the mind's ruling part either grants assent to it or holds back; granting assent produces impulse, the movement toward action. Because assent is 'up to us,' the Stoics located human freedom and moral responsibility precisely here. Chrysippus used it to reconcile fate with agency — a move made famous by Epictetus' insistence that our judgments, not events, are what lie in our power.

How it traveled

  1. Eudemian Ethics
    Chalcis · -322
    explains
  2. De anima
    Chalcis · -322
    explains
  3. Lucullus
    Formiae · -43
    explains
  4. De Fato
    Formiae · -43
    explains
  5. Discourses
    Nicopolis · 108
    explains
  6. De Stoicorum repugnantiis
    Chaeronea · 120
    explains
  7. The Handbook
    Nicopolis · 135
    explains
  8. Fragments
    Nicopolis · 135
    explains
  9. Ad Se Ipsum
    Vindobona (Vienna) · 170
    explains
  10. Adversus Mathematicos
    Alexandria · 190
    explains
  11. Pyrrhoniae Hypotyposes
    Alexandria · 210
    explains
  12. Vitae philosophorum
    · 240
    explains
  13. Enneades
    Rome · 270
    explains
  14. Duties of the Heart
    Zaragoza (Saragossa) · 1080
  15. Ketem Paz on Zohar
    Tzfat · 1561
  16. Reshit Chokhmah
    Tzfat · 1575
  17. Maor VaShemesh
    Krakow (Cracow) · 1817
  18. Fragmenta Moralia
    Athens
    explains
  19. Fragmenta Logica et Physica
    Athens
    explains
  20. De placitis Hippocratis et Platonis
    Rome
    explains
  21. De fato
    Athens
    explains
  22. Liber de philosophorum sectis (epitome ap. Stobaeum)
    explains
  23. Stromata
    explains
  24. De Ira
    explains
  25. De Ebrietate
    explains
  26. Suidae lexicon
    explains
  27. Epistulae
    explains
  28. In Aristotelis Libros De Anima Paraphrasis
    explains

Key passages(20)

Fragments & Testimonia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Logica et Physica · Chrysippus

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Noctes Atticae · Aulus Gellius

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De animalium motione · Aristotle

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Liber de philosophorum sectis (epitome ap. Stobaeum) · Arius Didymus

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Fragmenta Moralia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Moralia · Chrysippus

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Fragmenta Logica et Physica · Chrysippus

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Fragmenta Logica et Physica · Chrysippus

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Fragmenta Logica et Physica · Chrysippus

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