I am a plain practical man, not one of your theorists and splitters of hairs and choppers of logic. - James George Frazer

It is probably not too much to say that the hope of progress--moral and intellectual as well as material--in the future is bound up with the fortunes of science, and that every obstacle placed in the way of scientific discovery is a wrong to humanity.

From the earliest times man has been engaged in a search for general rules whereby to turn the order of natural phenomena to his own advantage, and in the long search he has scraped together a great hoard of such maxims, some of them golden and some of them mere dross. The true or golden rules constitute the body of applied science which we call the arts; the false are magic.

The world cannot live at the level of its great men.