The fact that a belief has a good moral effect upon a man is no evidence whatsoever in favor of its truth. I'm not contending in a dogmatic way that there is not a God. What I'm contending is that we don't know that there is. I don't like the word "absolute." I don't think there is anything absolute whatever. The moral law, for example, is always changing. At one period in the development of the human race, almost everybody thought cannibalism was a duty.

Order, unity, and continuity are human inventions, just as truly as catalogues and encyclopedias.

Every sane and sensible and quiet thing we do is absolutely ignored by the press.

Machines have altered our way of life, but not our instincts. Consequently, there is maladjustment.

...the nonexistence of God makes more difference to some of us than to others. To me, it means that there is no absolute morality, that moralities are sets of social conventions devised by humans to satisfy their needs.

A stupid man's report of what a clever man says can never be accurate, because he unconsciously translates what he hears into something he can understand.

Folly is perennial and yet the human race has survived.