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

For those who are going to learn from books, learning the art of reading would seem to be indispensable.

We do not know what education can do for us, because we have never tried it.

To solve a problem it is necessary to think. It is necessary to think even to decide what facts to collect.

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

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

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