Nobody can read Freud without realizing that he was the scientific equivalent of another nuisance, George Bernard Shaw.

Too few have the courage of my convictions.

Freedom of inquiry, freedom of discussion, and freedom of teaching - without these a university cannot exist.

A civilization in which there is not a continuous controversy about important issues is on the way to totalitarianism and death

It is not so important to be serious as it is to be serious about the important things.

Democracy has not failed; the intelligence of the race has failed before the problems the race has raised

Whenever the urge to exercise comes upon me, I lie down for a while and it passes.