Science only means knowledge; and for [Greek] ancients it did only mean knowledge. Thus the favorite science of the Greeks was Astronomy, because it was as abstract as Algebra. ... We may say that the great Greek ideal was to have no use for useful things. The Slave was he who learned useful things; the Freeman was he who learned useless things. This still remains the ideal of many noble men of science, in the sense they do desire truth as the great Greeks desired it; and their attitude is an external protest against vulgarity of utilitarianism.

...It's natural to believe in the supernatural. It never feels natural to accept only natural things.

The Declaration of Independence dogmatically bases all rights on the fact that God created all men equal; and it is right; for if they were not created equal, they were certainly evolved unequal. There is no basis for democracy except in a dogma about the divine origin of man.

Education is the period during which you are being instructed by somebody you do not know, about something you do not want to know.

Our civilization has decided that determining the guilt or innocence of men is a thing too important to be trusted to trained men. When it wants a library catalogued, or the solar system discovered, or any trifle of that kind, it uses up its specialists. But when it wishes anything done which is really serious, it collects twelve of the ordinary men standing round. The same thing was done, if I remember right, by the Founder of Christianity.

Here ends another day, during which I have had eyes, ears, hands and the great world around me. Tomorrow begins another day. Why am I allowed two?

A small artist is content with art; a great artist is content with nothing except everything.