- Every time someone cries out in prayer and I can't answer, I feel guilty about not being God. - That doesn't sound good. - I understand that I have a problem, and I know what I need to do to solve it, all right? I'm working on it. Of course, Harry hadn't said what the solution was. The solution, obviously, was to hurry up and become God.

If you've been cryocrastinating, putting off signing up for cryonics "until later", don't think that you've "gotten away with it so far". Many worlds, remember? There are branched versions of you that are dying of cancer, and not signed up for cryonics, and it's too late for them to get life insurance.

If I'm teaching deep things, then I view it as important to make people feel like they're learning deep things, because otherwise, they will still have a hole in their mind for "deep truths" that needs filling, and they will go off and fill their heads with complete nonsense that has been written in a more satisfying style.

He'd met other prodigies in mathematical competitions. In fact he'd been thoroughly trounced by competitors who probably spent literally all day practising maths problems and who'd never read a science-fiction book and who would burn out completely before puberty and never amount to anything in their future lives because they'd just practised known techniques instead of learning to think creatively.

Moore's Law of Mad Science: Every eighteen months, the minimum IQ necessary to destroy the world drops by one point.

Rationality is the master lifehack which distinguishes which other lifehacks to use.

You are personally responsible for becoming more ethical than the society you grew up in.