When I look upon seamen, men of science and philosophers, man is the wisest of all beings; when I look upon priests and prophets nothing is as contemptible as man.
Even if I am but a pretender to wisdom, that in itself is philosophy.
Most men are within a finger's breadth of being mad.
Poverty is a virtue which one can teach oneself.
Nothing can be produced out of nothing.
Aren't you ashamed, you who walk backward along the whole path of existence, and blame me for walking backward along the path of the promenade?