What a man is: that is to say, personality, in the widest sense of the word; under which are included health, strength, beauty, temperament, moral character, intelligence, and education.

Sexual passion is the cause of war and the end of peace, the basis of what is serious... and consequently the concentration of all desire

The less one, as a result of objective or subjective conditions, has to come into contact with people, the better off one is for it.

He who can see truly in the midst of general infatuation is like a man whose watch keeps good time, when all clocks in the town in which he lives are wrong. He alone knows the right time; what use is that to him?

Opinion is like a pendulum and obeys the same law.

You are free to do what you want, but you are not free to want what you want.

How is it possible that suffering that is neither my own nor of my concern should immediately affect me as though it were my own, and with such force that is moves me to action?