Brian

“The only desire the Culture could not satisfy from within itself was one common to both the descendants of its original human stock and the machines they had (at however great a remove) brought into being: the urge not to feel useless.”
― Iain M. Banks, Consider Phlebas

“You can prove anything you want by coldly logical reason---if you pick the proper postulates.”
― Isaac Asimov, I, Robot

“What we know is a drop, what we don't know is an ocean.”
― Isaac Newton

“It is the obvious which is so difficult to see most of the time. People say 'It's as plain as the nose on your face.' But how much of the nose on your face can you see, unless someone holds a mirror up to you?”
― Isaac Asimov, I, Robot