We spend our time envying people whom we wouldn't wish to be.

One kills a man, one is an assassin; one kills millions, one is a conqueror; one kills everybody, one is a god.

A married couple are well suited when both partners usually feel the need for a quarrel at the same time.

To be adult is to be alone.

Falsity cannot keep an idea from being beautiful; there are certain errors of such ingenuity that one could regret their not ranking among the achievements of the human mind.

Science had better not free the minds of men too much, before it has tamed their instincts.

The books one has written in the past have two surprises in store: one couldn't write them again, and wouldn't want to.