Men do not change; they unmask themselves.

Love is above the laws, above the opinion of men; it is the truth, the flame, the pure element, the primary idea of the moral world.

Man's most valuable faculty is his imagination.

intellect is a sin that must be atoned for by leading exactly the life of those who have none.

Scientific progress makes moral progress a necessity; for if man's power is increased, the checks that restrain him from abusing it must be strengthened.

I am glad that I am not a man, for then I should have to marry a woman.

Every time a new nation, America or Russia for instance, advances toward civilization, the human race perfects itself; every time an inferior class emerges from enslavement and degradation, the human race again perfects itself.