The Enchiridion

by Epictetus

In our power are thought, impulse, will to get and will to avoid, and, in a word, everything which is our own doing. Things not in our power include the body, property, reputation, office, and, in a word, everything which is not our own doing.

but if you think that only your own belongs to you, and that what is another's is indeed another's, no one will ever put compulsion or hindrance on you, you will blame none, you will accuse none, you will do nothing against your will, no one will harm you, you will have no enemy, for no harm can touch you.

What disturbs men's minds is not events but their judgements on events:

To accuse others for one's own misfortunes is a sign of want of education; to accuse oneself shows that one's education has begun; to accuse neither oneself nor others shows that one's education is complete.

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.

When you do a thing because you have determined that it ought to be done, never avoid being seen doing it, even if the opinion of the multitude is going to condemn you. For if your action is wrong, then avoid doing it altogether, but if it is right, why do you fear those who will rebuke you wrongly?