Sometimes I think a man could wander across the disc all his life and not see everything there is to see,' said Twoflower. 'And now it seems there are lots of other worlds as well. When I think I might die without seeing a hundredth of all there is to see it makes me feel,' he paused, then added, 'well, humble, I suppose. And very angry, of course.

Life doesn't happen in chapters - at least, not regular ones.

This is Art holding a Mirror up to Life. That’s why everything is exactly the wrong way around.

All assassins had a full-length mirror in their rooms, because it would be a terrible insult to anyone to kill them when you were badly dressed.

Asking someone to repeat a phrase you'd not only heard very clearly but were also exceedingly angry about was around Defcon II in the lexicon of squabble.

Sometimes, the best answer is a more interesting question.

Sergeant Colon of the Ankh-Morpork City Guard was on duty. He was guarding the Brass Bridge, the main link between Ankh and Morpork. From theft. When it came to crime prevention, Sergeant Colon found it safest to think big.