Keep death and exile and all other scary things in front of your eyes every day. But especially death. If you do this, you'll never think like a coward or desperately want things you shouldn't.
Let death and exile, and all other things which appear terrible, be daily before your eyes, but death chiefly; and you will never entertain an abject thought, nor too eagerly covet anything.
Remember: it's not the person who insults you or hits you who actually offends you. It's how you see these things as offensive. So when someone provokes you, know that it's your own thoughts that are provoking you. Try not to be confused by what seems to be happening. If you can pause for a moment, you'll find it much easier to control yourself.
Remember that it is not he who gives abuse or blows, who affronts, but the view we take of these things as insulting. When, therefore, anyone provokes you, be assured that it is your own opinion which provokes you. Try, therefore, in the first place, not to be bewildered by appearances. For if you once gain time and respite, you will more easily command yourself.