The psychology of adultery has been falsified by conventional morals, which assume, in monogamous countries, that attraction to one person cannot coexist with affection for another. Everybody knows that this is untrue.

The road to happiness and prosperity lies in an organized diminution of work.

What is best in mathematics deserves not merely to be learnt as a task, but to assimilated as a part of daily thought, and brought again and again before the mind with ever-renewed encouragement.

Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true.

This, however, is a passing nightmare; in time the earth will become again incapable of supporting life, and peace will return.

In democratic countries, the most important private organizations are economic. Unlike secret societies, they are able to exercise their terrorism without illegality, since they do not threaten to kill their enemies, but only to starve them.

Everything is vague to a degree you do not realize till you have tried to make it precise.