It is almost impossible systematically to constitute a natural moral law. Nature has no principles. She furnishes us with no reason to believe that human life is to be respected. Nature, in her indifference, makes no distinction between good and evil.

A woman without breasts is like a bed without pillows.

The power of love itself weakens and gradually becomes lost with age, like all the other energies of man.

Jealousy is a virtue of democracies which preserves them from tyrants.

Men are not created to know, men are not created to understand ... and our illusions increase with our knowledge.

True education is the ability to discern the difference between what you do know and what you don't.

Until one has loved an animal a part of one's soul remains unawakened.