Mathematics is, I believe, the chief source of the belief in eternal and exact truth, as well as a sensible intelligible world.

We are all prone to the malady of the introvert who with the manifold spectacle of the world spread out before him, turns away and gazes only upon the emptiness within.

The qualities most needed are charity and tolerance, not some form of fanatical faith such as is offered to us by the various rampant isms

Another merit of home is that it preserves the diversity between individuals. If we were all alike, it might be convenient for the bureaucrat and the statistician, but it would be very dull, and would lead to a very unprogressive society.

Inferences of Science and Common Sense differ from those of deductive logic and mathematics in a very important respect, namely, when the premises are true and the reasoning correct, the conclusion is only probable.

One must expect a war between U.S.A. and U.S.S.R. which will begin with the total destruction of London. I think the war will last 30 years, and leave a world without civilised people, from which everything will have to build afresh - a process taking (say) 500 years.

When we have told how things behave when they are electrified, and under what circumstances they are electrified, we have told all there is to know