Alan Turing — "I like to think the brain is a kind of pudding, but not a Christmas pudding."

"Mathematical reasoning may be regarded rather schematically as the exercise of a combination of two facilities, which we may call intuition and ingenuity."

"I am enough of an artist to draw freely upon my imagination."

"The extent to which we regard thinking as a function of the brain rather than the entire body is very much a matter of taste."

"One could say that a man can 'inject' an idea into the machine, and that it will respond to a certain extent and then drop into quiescence, like a piano string struck by a hammer. Another simile would…"

"It is not easy to devise a game which is fair in this respect between the machine and the man."