Man is not fully free unless he is master of himself.

It is impossible that happiness, and yearning for what is not present, should ever be united.

A guide, on finding a man who has lost his way, brings him back to the right path—he does not mock and jeer at him and then take himself off. You also must show the unlearned man the truth, and you will see that he will follow. But so long as you do not show it him, you should not mock, but rather feel your own incapacity.

People are not disturbed by things, but by the view they take of them.

The two powers which in my opinion constitute a wise man are those of bearing and forbearing.

Opportunity beckons more surely when misfortune comes upon a person than it ever does when that person is riding the crest of a wave of success. It sharpens a person's wits, if that person will let it, enabling him or her to see more clearly and evaluate situations with a more knowledgeable judgment.

If what charms you is nothing but abstract principles, sit down and turn them over quietly in your mind: but never dub yourself a Philosopher.