The task of a philosopher: we should bring our will into harmony with whatever happens, so that nothing happens against our will and nothing that we … - Epictetus

28. If a person gave your body to any stranger he met on his way, you would certainly be angry. And do you feel no shame in handing over your own mind to be confused and mystified by anyone who happens to verbally attack you?

If a friend tells you that someone has criticized or insulted you, say, “They must not know about my other faults, or they would have pointed out those, too.

If you have assumed a character beyond your strength, you have both played a poor figure in that, and neglected one that is within your powers.