On Duties 1.142 — Cicero (on the Stoics)

Cicero (on the Stoics), On Duties 1.142

Next, then, we must discuss orderliness of conduct and seasonableness of occasions. These two qualities are embraced in that science which the Greeks call εὐταξία—not that εὐταξία which we translate with moderation [modestia], derived from moderate; but this is the εὐταξία by which we understand orderly conduct. And so, if we may call it also moderation, it is defined by the Stoics as follows: "Moderation is the science of disposing aright everything that is done or said." So the essence of orderliness and of right-placing, it seems, will be the same; for orderliness they define also as "the arrangement of things in their suitable and appropriate places." By "place of action," moreover, they mean seasonableness of circumstance; and the seasonable circumstance for an action is called in Greek εὐκαιρία, in Latin occasio (occasion). So it comes about that in this sense moderation, which we explain as I have indicated, is the science of doing the right thing at the right time.