"May not machines carry out something which ought to be described as thinking but which is very different from what a man does?"

"In the time of Galileo it was argued that the texts, 'And the sun stood still ... and hasted not to go down about a whole day' (Joshua x. 13) and 'He laid the foundations of the earth, that it should …"

"Mathematics, rightly viewed, possesses not only truth, but supreme beauty—a beauty cold and austere, like that of sculpture, without appeal to any part of our weaker nature, without the gorgeous trapp…"

"I have had a number of conversations with people who are convinced that machines cannot think. I have not been convinced by their arguments."

"I am not concerned with whether a machine has feelings, but whether it can perform tasks that require intelligence."