Alan Turing

A computer would deserve to be called intelligent if it could deceive a human into believing that it was human.

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

A man provided with paper, pencil, and rubber, and subject to strict discipline, is in effect a universal machine.

Science is a differential equation. Religion is a boundary condition.

We can only see a short distance ahead, but we can see plenty there that needs to be done.

I am not very impressed with theological arguments whatever they may be used to support. Such arguments have often been found unsatisfactory in the past.

I believe that at the end of the century [20th] the use of words and general educated opinion will have altered so much that one will be able to speak of machines thinking without expecting to be contradicted.

We are not interested in the fact that the brain has the consistency of cold porridge.