If at age 20 you are not a Communist then you have no heart. If at age 30 you are not a Capitalist then you have no brains.

There are only two classes in good society in England: the equestrian classes and the neurotic classes.

Faith in reason as a prime motor is no longer the criterion of the sound mind, any more than faith in the Bible is the criterion of righteous intention.

Virtue is insufficient temptation.

The conversion of a savage to Christianity is the conversion of Christianity to savagery.

If associations to control burglary and murder were tolerated we should take it for granted that the members should all be burglers and murderers.

I dread success. To have succeeded is to have finished one's business on earth, like the male spider who is killed by the female the moment he has succeeded in his courtship. I like the state of continual becoming, with a goal in front and not behind.