I do not believe in the commercial possibility of induced radioactivity.

A time will however come (as I believe) when physiology will invade and destroy mathematical physics, as the latter has destroyed geometry.

The world shall perish not for lack of wonders, but for lack of wonder

If human beings could be propagated by cutting, like apple trees, aristocracy would be biologically sound.

Would I lay down my life to save my brother? No, but I would to save two brothers or eight cousins.

Christianity is haunted by the theory of a God with a craving for bloody sacrifices.

And if we must educate our poets and artists in science, we must educate our masters, labour and capital, in art.