The policy of repression of ideas cannot work and never has worked.

When we listen to the radio, look at television and read the newspapers we wonder whether universal education has been the great boon that its supporters have always claimed it would be.

Equality and justice, the two great distinguishing characteristics of democracy, follow inevitably from the conception of men, all men, as rational and spiritual beings.

Anybody who feels at ease in the world today is a fool.

The most distressing aspect of the world into which you are going is its indifference to the basic issues, which now, as always, are moral issues.

It is not so important to be serious as it is to be serious about the important things. The monkey wears an expression of seriousness which would do credit to any college student, but the monkey is serious because he itches.

Mathematics ... is indispensable as an intellectual technique. In many subjects, to think at all is to think like a mathematician.