Ask not that events should happen as you will, but let your will be that events should happen as they do, and you shall have peace. - Epictetus

The value of one's life is determined by how much love one gives, not by how much love one has received.

Consider when, on a voyage, your ship is anchored; if you go on shore to get water you may along the way amuse yourself with picking up a shellfish, or an onion. However, your thoughts and continual attention ought to be bent towards the ship, waiting for the captain to call on board; you must then immediately leave all these things, otherwise you will be thrown into the ship, bound neck and feet like a sheep. So it is with life. If, instead of an onion or a shellfish, you are given a wife or child, that is fine.

If someone is the street were entrusted with your body, you would be furious. Yet you entrust your mind to anyone around who happens to insult you, and allow it to be troubled and confused. Aren't you ashamed of that?