“In the matter of physics, the first lessons should contain nothing but what is experimental and interesting to see. A pretty experiment is in itself often more valuable than twenty formulae extracted from our minds.”

“Either CS (coordinate system) could be used with equal justification. The two sentences: the sun is at rest and the earth moves, or the sun moves and the earth is at rest, would simply mean two different conventions concerning two different CS”

“Engineering is not only study of 45 subjects but it is moral studies of intellectual life. Make things as simple as possible..but not simpler.”

“Each makes this cosmos and its construction the pivot of his emotional life, in order to find in this way peace and security which he can not find in the narrow whirlpool of personal experience.”

“Games are the most elevated form of investigation.”

“But indeed an old religious uncle of mine taught me to speak, who was in his youth an inland man; one that knew courtship too well, for there he fell in love. I have heard him read many lectures against it; and I thank God I am not a woman, to be touched with so many giddy offenses as he hath generally taxed their whole sex withal.”

“If I know your sect, I anticipate your argument”

“He hath disgrac'd me and hind'red me half a million; laugh'd at my losses, mock'd at my gains, scorned my nation, thwarted my bargains, cooled my friends, heated my enemies. And what's his reason? I am a Jew.”