In a logically perfect language, there will be one word and no more for every simple object, and everything that is not simple will be expressed by a combination of words, by a combination derived, of course, from the words for the simple things that enter in, one word for each simple component.

So far as I can remember, there is not one word in the Gospels in praise of intelligence.

Although this may seem a paradox, all exact science is based on the idea of approximation. If a man tells you he knows a thing exactly, then you can be safe in inferring that you are speaking to an inexact man.

The human race may well become extinct before the end of the century. Speaking as a mathematician, I should say the odds are about three to one against survival.

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

Obviousness is always the enemy of correctness.

Moral progress has consisted in the main of protest against cruel customs, and of attempts to enlarge human sympathy.