Amy

“It would probably never have occurred to him that his own difficulties with the world were akin to those suffered by women-- as with the men's committee meetings held over his head, almost as if he were not there, and the way people took little notice of what he had said or written, but remained obsessed by details of manners or appearance. Women had to learn to compensate for these indignities by making a special effort, but Alan Turing made no such attempt. He expected the male world to work for him, and was baffled when it did not.”
― Andrew Hodges

“If a machine is expected to be infallible, it cannot also be intelligent.”
― Alan Turing

“One of the most famous paradoxes ever articulated is often known by the title ‘the liar’s paradox’. At its simplest you can express it just by saying: ‘I am lying’. The liar’s paradox is a complicated business, discombobulating to think about because after all, if I’m lying, then my statement ‘I am lying’ must itself be a lie, unless I was actually telling the truth, in which case I would have been telling a lie.”
― David Boyle, Alan Turing: Unlocking the Enigma

“He was one of those many people without a natural sense of left and right, and he made a little red spot on his left thumb, which he called ‘the knowing spot”
― Andrew Hodges, Alan Turing: The Enigma