We deceive and flatter no one by such delicate artificies as we do our own selves.

I have long held the opinion that the amount of noise that anyone can bear undisturbed stands in inverse proportion to his mental capacity and therefore be regarded as a pretty fair measure of it.

That arithmetic is the basest of all mental activities is proved by the fact that it is the only one that can be accomplished by a machine.

Human life, like all inferior goods, is covered on the outside with a false glitter; what suffers always conceals itself.

All the cruelty and torment of which the world is full is in fact merely the necessary result of the totality of the forms under which the will to live is objectified.

Everybody's friend is nobody's.

In many cases hate a person is rooted in the involuntary estimate of its virtues.