This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Epictetus began as a slave in the household of Epaphroditus, a court official under Nero, and only after gaining his freedom built the school at Nicopolis where the Discourses were recorded, not by his own hand but by a student, Arrian, taking notes on lectures he never intended for publication. That origin matters for how the Stanford Encyclopedia frames his central idea, the distinction between what is up to us and what is not, since it is a doctrine formulated by a man whose own external circumstances, for most of his life, were about as unfree as a Roman subject's could be.
The entry treats prohairesis, usually translated volition or the faculty of choice, as the load bearing concept of the whole system. Epictetus argues that this capacity is by nature unimpeded, and that the claim is not empirical but close to definitional: the very idea of a capacity to decide for oneself, the entry states, implies as a matter of logical necessity that the deciding is free of external compulsion, because anything genuinely forced from outside would not be a decision in the relevant sense at all. Everything else, body, property, reputation, other people's opinions and even their affection, counts as an external, not because it does not matter, but because none of it can be secured by the exercise of one's own will the way a judgment can. The entry is careful to note that this does not license withdrawal from the world. Epictetus insists externals must still be used with care, since how they are used is not itself indifferent, while the outcome of that use is met with the same composure whether it succeeds or fails, an attitude the text elsewhere compares to washing a foot, which should be kept clean for its own sake but muddied without complaint if the whole body's safety requires it.
The entry flags a genuine scholarly dispute about how much of this is Epictetus's own contribution rather than an inheritance from the early Stoa, Zeno, Cleanthes and Chrysippus, whom Epictetus explicitly read and cites. Because so little of early Stoic writing on choice and impulse survives independently, the safest working assumption, the entry argues, is that Epictetus intensified an existing emphasis rather than invented a new doctrine outright, though Margaret Graver's work is cited as offering some evidence that prohairesis already carried real weight in the early school despite the thin record. A second and connected dispute concerns Arrian's role in the text as we have it: one view holds that Epictetus effectively composed the Discourses himself and that Arrian's claim to have merely taken notes is a polite fiction, while the majority view credits Arrian with compiling authentic material from an oral source, on the grounds that the Greek is plain and the philosophical argument sharper and more disciplined than anything else Arrian wrote under his own name.
Perhaps the least intuitive part of the doctrine, and the part the entry spends real effort defending, is how Epictetus squares an unimpeded human will with a cosmos he also describes as governed entirely by a rational and provident Zeus, of whose mind human reason is said to be a literal fragment. The resolution offered is that autonomy does not require an absence of prior causes, only that the reasoning faculty be the kind of thing capable of examining and correcting its own judgments, so that a person remains free in the sense that matters even while embedded in a universe where nothing, strictly, could have gone otherwise. It is the same structural move compatibilists before and after him have had to make, and the entry treats Epictetus's version of it, sharpened by a life spent with almost no external freedom at all, as the most psychologically demanding version the Stoa produced.