Fresh wounds," said Angua. "But one of them did shoot one of the other in the leg by accident." "I think you'd better put in your report as -self inflicted- wounds while resisting arrest," said Vimes.

The sign, which says: "Do not, under any circumstances, open this door!" - Of course, I've read it. Why do you think I want it opened?.. To see why they wanted it shut, of course. This exchange contains almost all you need to know about human civilization. At least, those bits of it that are now under the sea, fenced off or still smoking.

You can’t say ‘if this didn’t happen then that would have happened’ because you don’t know everything that might have happened. You might think something’d be good, but for all you know it could have turned out horrible. You can’t say ‘If only I’d…’ because you could be wishing for anything. The point is, you’ll never know. You’ve gone past. So there’s no use thinking about it.

The more you think about it, the more amazing the everyday world of human beings becomes: most of it doesn't actually exist at all.

Why do you go away? So that you can come back. So that you can see the place you came from with new eyes and extra colors. And the people there see you differently, too. Coming back to where you started is not the same as never leaving.

I don't see what's so triffic about creating people as people and then gettin' upset 'cos they act like people.

Opera happens because a large number of things amazingly fail to go wrong.