This is a do-it-yourself test for paranoia: you know you've got it when you can't think of anything that's your fault.

Too few have the courage of my convictions.

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

College football: I do not see the relationship of those highly industrialized affairs on Saturday afternoons to higher learning in America.

Nobody can decide for himself whether he is going to be a human being. The only question open to him is whether he will be an ignorant undeveloped one or one who has sought to reach the highest point he is capable of attaining.

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.

Education can be dangerous. It is very difficult to make it not dangerous. In fact, it is almost impossible.