If any philosopher had been asked for a definition of infinity, he might have produced some unintelligible rigmarole, but he would certainly not have been able to give a definition that had any meaning at all.

It would have been very much better for the world if Britain had remained neutral and the Germans had won a quick victory. We should not have had either the Nazis or the Communists if that had happened.

The Axiom of Choice is necessary to select a set from an infinite number of socks, but not an infinite number of shoes.

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

It is permissible with certain precautions to speak in print of coitus, but it is not permissible to employ the monosyllabic synonym for this word.

It is obviously possible that what we call waking life may only be an unusual and persistent nightmare.

There is no difference between someone who eats too little and sees Heaven and someone who drinks too much and sees snakes.