Not to feel exasperated or defeated or despondent because your days aren't packed with wise and moral actions. But to get back up when you fail, to c… - Marcus Aurelius

There are three relations [between thee and other things]: the one to the body which surrounds thee; the second to the divine cause from which all things come to all; and the third to those who live with thee.

Some people, when they do someone a favor, are always looking for a chance to call it in. And some aren't, but they're still aware of it--still regard it as a debt. But others don't even do that. They're like a vine that produces grapes without looking for anything in return. (Hays translation)

...be tolerant with others and strict with yourself. Remember, nothing belongs to you but your flesh and blood—and nothing else is under your control. (Hays translation)