The distinction between what is "up to us"—"under our control", "in our power," or if you prefer, "our business" (ep'humin in Greek)—and what is not up to us (ouk ep'humin), eventually becomes a central doctrine of the Stoic school and tradition of philosophy. This particularly so in the thought of the late Stoic Epictetus, where the presently much-discussed "dichotomy of  Continue Reading …