One may demand of me that I should seek truth, but not that I should find it

I have not the hope of being immortal, because the desire of it has not given me that vanity.

They mistake the first manifestations of a developing sexual nature for the voice of God calling them to Himself; and it is precisely when nature is inciting them that they embrace a fashion of life contrary to nature's wish.

Scepticism is the first step towards truth.

How old the world is! I walk between two eternities.... What is my fleeting existence in comparison with that decaying rock, that valley digging its channel ever deeper, that forest that is tottering and those great masses above my head about to fall? I see the marble of tombs crumbling into dust; and yet I don't want to die!

The world is the house of the strong. I shall not know until the end what I have lost or won in this place, in this vast gambling den where I have spent more than sixty years, dice box in hand, shaking the dice.

What a fine comedy this world would be if one did not play a part in it.