"The computer is an extension of the human mind."

"If you cannot explain it simply, you do not understand it well enough."

"No, I am not interested in developing a powerful brain. All I am after is just a mediocre brain, something like the Brain of the Man in the Street."

"The human mind is capable of doing many things that a machine cannot, but a machine can do many things that a human cannot."

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