"The world is a stage on which a tragedy is performed, and the actors are all madmen."

"The greatest happiness for a man is to be free."

"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."

"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."

"The value of a man is measured by the extent to which he is willing to submit to the yoke of suffering."