You will be amused when you see that I have more than once deceived without the slightest qualm of conscience, both knaves and fools.

The philosopher is a person who refuses no pleasures which do not produce greater sorrows, and who knows how to create new ones.

Those who do not love life do not deserve it.

My errors will point to thinking men the various roads, and will teach them the great art of treading on the brink of the precipice without falling into it.

I have loved women even to madness, but I have always loved liberty better.

God, great principle of all minor principles, God, who is Himself without a principle, could not conceive Himself, if, in order to do it, He required to know His own principle.

Whether happy or unhappy, life is the only treasure man possesses.