The degree of one's emotions varies inversely with one's knowledge of the facts - the less you know the hotter you get.

Well, there are many religions, but I suppose they all worship the same God.

To a mind of sufficient intellectual power, the whole of mathematics would appear trivial, as trivial as the statement that a four-footed animal is an animal.

Love, children, and work, are the great sources of fertilizing contact between the individual and the rest of the world.

That the world is in a bad shape is undeniable, but there is not the faintest reason in history to suppose that Christianity offers a way out.

A sense of duty is useful in work but offensive in personal relations. People wish to be liked, not to be endured with patient resignation.

It is only theory that makes men completely incautious.