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

More free time means more time to waste. The worker who used to have only a little time in which to get drunk and beat his wife now has time to get drunk, beat his wife - and watch TV.

It must be remembered that the purpose of education is not to fill the minds of students with facts... it is to teach them to think.

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

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

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

When I feel like exercising I just lie down until the feeling goes away.