Remember, it is not enough to be hit or insulted to be harmed, you must believe that you are being harmed. If someone succeeds in provoking you, realize that your mind is complicit in the provocation. Which is why it is essential that we not respond impulsively to impressions; take a moment before reacting, and you will find it easier to maintain control.

An ignorant person is inclined to blame others for his own misfortune. To blame oneself is proof of progress. But the wise man never has to blame another or himself.

If you want to make progress, put up with being perceived as ignorant or naive in worldly matters, don't aspire to a reputation for sagacity. If you do impress others as somebody, don't altogether believe it. You have to realize, it isn't easy to keep your will in agreement with nature, as well as externals. Caring about the one inevitably means you are going to shortchange the other.

Any person capable of angering you becomes your master; he can anger you only when you permit yourself to be disturbed by him.

Who then is invincible? The one who cannot be upset by anything outside their reasoned choice.

Let whatever appears to be the best be to you an inviolable law. And if any instance of pain or pleasure, glory or disgrace, be set before you, remember that now is the combat, now the Olympiad comes on, nor can it be put off; and that by one failure and defeat honor may be lost or—won.

Remind yourself that what you love is mortal … at the very moment you are taking joy in something, present yourself with the opposite impressions. What harm is it, just when you are kissing your little child, to say: Tomorrow you will die, or to your friend similarly: Tomorrow one of us will go away, and we shall not see one another any more?