Alan Turing

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

No, I'm not interested in developing a powerful brain. All I'm after is just a mediocre brain, something like the President of the American Telephone and Telegraph Company.

If a machine is expected to be infallible, it cannot also be intelligent.

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

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

I have had a dream indicating rather clearly that I am on the way to being hetero, though I don't accept it with much enthusiasm either awake or in the dreams.

The idea behind digital computers may be explained by saying that these machines are intended to carry out any operations which could be done by a human computer.

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

Machines take me by surprise with great frequency.

I have such a stressful job that the only way I can get it out of my mind is by running hard.

I want a permanent relationship, and I might feel inclined to reject anything which of its nature could not be permanent.

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

I believe that at the end of the century 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.

Programming is a skill best acquired by practice and example rather than from books.