Any book, which is at all important, should be reread immediately

The fruits of Christianity were religious wars, butcheries, crusades, inquisitions, extermination of the natives of America, and the introduction of African slaves in their place.

Mostly it is loss which teaches us about the worth of things.

Mostly the loss teaches us only about the value of things.

Every satisfaction he attains lays the seeds of some new desire, so that there is no end to the wishes of each individual will.

To be alone is the fate of all great minds—a fate deplored at times, but still always chosen as the less grievous of two evils.

Thus also every keen pleasure is an error and an illusion, for no attained wish can give lasting satisfaction.