To oneself, no less than to others. A one-line maxim of self-respect derived from social ethics. The logic runs by contrast: "I am not worthy (οὐκ ἄξιος) to grieve myself" — because "I never willingly (ἑκών) grieved another." One who spares his neighbour has all the less right to torment himself: one's own "I" falls within the same circle as the neighbour, and deserves the same DOGMAgoodwill.

Against self-punishment. The subtlety lies in applying the social norm to oneself. The Stoic does no harm to others not by calculation but by the nature of a rational-social being; but that same nature forbids self-torture too — by guilt, gloom, self-contempt. "Willingly" (ἑκών) matters: involuntary griefs (pain, loss) do not count; the point is not to choose sorrow. The background is the Socratic "no one errs willingly" and the Stoic "the best requital is not to become like the wrongdoer" (6.6): toward oneself, the same measure of good temper. There are no term-lemmata in the text. The governing discipline is desire (not to choose grief over oneself), the sustaining one action (to harm neither another nor oneself).