"Compassion is the basis of all morality."

"The animal enjoys the present, man is tormented by the future."

"There is no doubt that life is given us, not to be enjoyed, but to be overcome; to be got over."

"The only difference between a wise man and a fool is that the wise man knows he is a fool, and the fool does not."

"In their hearts women think that it is men's business to earn money and theirs to spend it."