Too few have the courage of my convictions.

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

Education is not to reform students or amuse them or to make them expert technicians. It is to unsettle their minds, widen their horizons, inflame their intellects, teach them to think straight, if possible.

Nature will not forgive those who fail to fulfill the law of their being. The law of human beings is wisdom and goodness, not unlimited acquisition.

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

A world community can exist only with world communication, which means something more than extensive short-wave facilities scattered; about the globe. It means common understanding, a common tradition, common ideas, and common ideals.

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