Understand
“Being stoic,” in everyday English, usually means suppressing feeling, staying flat and unbothered no matter what happens. That is not the ancient philosophy’s actual position. Stoic theory of emotion is more specific and considerably more interesting: it distinguishes several different things that all get called “emotion” in English, treats only one category as the problem, and even makes room for a kind of good feeling a wise person can have.
Examine
Passion, in the technical sense
The Stoics used pathē (often translated “passions,” though “afflictions” or “disturbances” gets closer to the intended sense) for excessive, irrational emotional states caused by a mistaken judgment: unreasoning fear, uncontrolled anger, excessive grief, immoderate desire. The key word is mistaken. A pathos isn’t just “a strong feeling,” it’s a feeling that’s downstream of a false or exaggerated belief, most often the belief that something merely preferred or dispreferred (see Preferred Indifferents) is actually good or bad in the deeper sense that only virtue and vice are supposed to occupy.
This account of pathē is preserved mainly through later summaries, particularly Diogenes Laertius’s Lives of the Eminent Philosophers, Book 7, since the detailed technical writing on Stoic psychology, much of it by Chrysippus, survives only in fragments and secondhand reports rather than complete original texts. Reconstructing exactly how the early Stoa classified specific passions relies heavily on these later sources, and scholars continue to debate some of the finer details.
What isn’t the target
Two things are explicitly not what Stoic practice is trying to eliminate. First, the initial, involuntary jolt, the flinch at a loud noise, the flash of alarm at bad news, is a “first movement” (a term used by later Stoics, notably discussed by Seneca in his essay On Anger), not itself a passion in the technical sense, since it happens before any judgment is even formed. See Impressions and Assent for the mechanism. Second, the Stoics described eupatheiai, “good feelings,” a small set of positive emotional states (like joy, caution, and wishing well) that a genuinely wise person experiences, arising from correct rather than mistaken judgment. The theory was never “feel nothing,” it was “don’t let false beliefs generate destructive states, and notice that correct beliefs can generate good ones.”
The word that gets confused
Apatheia, freedom from destructive passions, is where the English word “apathy” comes from, and the resemblance causes real confusion. Apatheia in the Stoic sense isn’t a lack of caring, it’s specifically the absence of the pathē described above: irrational, judgment-driven disturbances. A Stoic sage with apatheia, on the ancient account, still experiences the eupatheiai and still acts with care and engagement in the world; what they lack is the specific kind of suffering that comes from mistaken beliefs about what’s genuinely good or bad.
A modern example
Someone cuts you off in traffic. The first-movement flinch, a jolt of alarm or irritation, happens automatically and isn’t the target of Stoic practice. What happens next is where the theory applies: if you assent to the judgment “this person has grievously wronged me and deserves my fury,” that assent, not the original jolt, produces sustained anger, the kind that has you replaying the incident twenty minutes later. Noticing the first movement without escalating it into a full passion is the actual Stoic skill being described here, and it’s compatible with still feeling something in the moment.
Common misunderstanding: Stoicism does not claim you should feel nothing. It distinguishes an automatic first reaction (not the target), destructive passions built on mistaken judgment (the actual target), and even a category of healthy positive feeling the Stoics thought a wise person genuinely experiences.
Practice
- When a strong reaction hits, let the first, involuntary jolt happen without judging yourself for having it.
- Before it escalates, name the belief underneath it: what are you assuming is true, or how bad you’re assuming it is.
- Check that belief against the evidence, is the underlying judgment actually accurate, or exaggerated.
- Let your emotional state track the corrected judgment rather than the first, unexamined one.
Primary sources
- Diogenes Laertius, Lives of the Eminent Philosophers, Book 7
- Seneca, On Anger (discusses the “first movements” distinction)