Isaac Asimov on John W. Campbell

“[Stanley] Weinbaum met the challenge of a demand John Campbell was to make of his writers in later years: "Write me a story about an organism that thinks as well as a man, but not like a man."”

“Suppose you meet a man who asks you what your field of endeavor is and you tell him that you are the world's greatest living vertebrate paleontologist, which is, of course, what you are. And suppose that, on hearing this, the man you meet fixes you with a glittering eye and proceeds to lecture you for five hours on vertebrate paleontology, getting all his facts wrong, yet somehow leaving you unable to argue them. You will then have met [John W.] Campbell.”