Quand celui à qui l'on parle ne comprend pas et celui qui parle ne se comprend pas, c'est de la métaphysique When he to whom a person speaks does not understand, and he who speaks does not understand himself, that is metaphysics.

Monsieur l'abbé, I detest what you write, but I would give my life to make it possible for you to continue to write.

We should be considerate to the living; to the dead we owe only the truth.

Think for yourselves and let others enjoy the privilege to do so, too.

To caress the serpent that devours us, until it has eaten away our heart.

There is only one morality, as there is only one geometry.

Anyone who seeks to destroy the passions instead of controlling them is trying to play the angel.