The good life is one inspired by love and guided by knowledge.

Marriage is for women the commonest mode of livelihood, and the total amount of undesired sex endured by women is probably greater in marriage than in prostitution.

Love is something far more than desire for sexual intercourse it is the principal means of escape from the loneliness which afflicts most men and women throughout the greater part of their lives.

Men are born ignorant, not stupid. They are made stupid by education.

In America everybody is of the opinion that he has no social superiors, since all men are equal, but he does not admit that he has no social inferiors, for, from the time of Jefferson onward, the doctrine that all men are equal applies only upwards, not downwards.

The megalomaniac differs from the narcissist by the fact that he wishes to be powerful rather than charming, and seeks to be feared rather than loved. To this type belong many lunatics and most of the great men of history.

Men who are unhappy, like men who sleep badly, are always proud of the fact.

Religions, which condemn the pleasures of sense, drive men to seek the pleasures of power. Throughout history power has been the vice of the ascetic.

The theoretical understanding of the world, which is the aim of philosophy, is not a matter of great practical importance to animals, or to savages, or even to most civilised men.

Aristotle maintained that women have fewer teeth than men although he was twice married, it never occurred to him to verify this statement by examining his wives' mouths.