If someone irritates you, it is only your own response that is irritating you. Therefore, when anyone seems to be provoking you, remember that it is only your judgment of the incident that provokes you. -

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

Fight against yourself, recover yourself to decency, to modesty, to freedom. And, in the first place, condemn your actions; but when you have condemned them, do not despair of yourself. For both ruin and recovery are from within.

No living being is held by anything so strongly as its own needs.

It is impossible for a man to learn what he thinks he already knows.

It is difficulties that show what men are.

Whoever does not regard what he has as most ample wealth, is unhappy, though he be master of the world.