The constant demands of the heart and the belly can allow man only an incidental indulgence in the pleasures of the eye and the understanding.

There is a kind of courtesy in skepticism. It would be an offense against polite conventions to press our doubts too far.

Nietzsche was personally more philosophical than his philosophy. His talk about power, harshness, and superb immorality was the hobby of a harmless young scholar and constitutional invalid.

All the doctrines that have flourished in the world about immortality have hardly affected man's natural sentiment in the face of death.

The tide of evolution carries everything before it, thoughts no less than bodies, and persons no less than nations.

The highest form of vanity is love of fame.

The family is one of nature's masterpieces.