"The idea of a 'thinking machine' is not something that should be taken lightly."

"The popular view is that the brain is a kind of telephone exchange. I believe that it is not quite as simple as that."

"The computer is a tool for understanding the universe."

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

"At some stage therefore we should have to expect the machines to take control."