Don't make anyone ask for love.

Tilling the fertile soil of man's vanity.

All change is not growth; all movement is not forward.

I care not much for a man's religion whose dog and cat are not the better for it.

Everyone who is seriously involved in the pursuit of science becomes convinced that a spirit is manifest in the laws of the Universe - a spirit vastly superior to that of man. . . . In this way the pursuit of science leads to a religious feeling of a special sort, which is indeed quite different from the religiosity of someone more naive.

A man's ethical behavior should be based effectually on sympathy, education, and social ties; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death.

Religion increasingly is tending to degenerate into a decent formula wherewith to embellish a comfortable life.

Religion has done love a great service by making it a sin.

Youth is a religion from which one always ends up being converted.

I still lack a political, religious and philosophical world view - I change it every month - and so I'll have to limit myself to descriptions of how my heroes love, marry, give birth, die, and how they speak.