If all our happiness is bound up entirely in our personal circumstances it is difficult not to demand of life more than it has to give.

All movements go too far.

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.

Mathematics, rightly viewed, posses not only truth, but supreme beauty a beauty cold and austere, like that of sculpture.

I am paid by the word, so I always write the shortest words possible.

Ethics is in origin the art of recommending to others the sacrifices required for cooperation with oneself.

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 is preoccupation with possessions, more than anything else, that prevents men from living freely and nobly.

Freedom comes only to those who no longer ask of life that it shall yield them any of those personal goods that are subject to the mutations of time.

Obscenity is whatever happens to shock some elderly and ignorant magistrate.