You never knew about people, like you never knew how deep a pond was because all you saw was the top.

You did something because it had always been done, and the explanation was, ‘But we’ve always done it this way.’ A million dead people can’t have been wrong, can they?

Oh. I see. People don't want to see what can't possibly exist.

He talks pretty big for a gutter wizard," he muttered. "You don't understand at all," said the wizard wearily. "I'm so scared of you my spine has turned to jelly, it's just that I'm suffering from an overdose of terror right now. I mean, when I've got over that then I'll have time to be decently frightened of you.

I found while driving in Wyoming that wearing a stetson and driving a beat-up pickup meant you could go as fast as you like, while the police picked up Californian winnebagos that went one mph over 55. After all, they wanted to bring money into the state, not merely circulate it.

London was not designed for cars. Come to that, it wasn't designed for people. It just sort of happened. This created problems, and the solutions that were implemented became the next problems, five or ten or a hundred years down the line.

Little fussy Otto, in his red-lined black opera cloak with pockets for all his gear, his shiny black shoes, his carefully cut widow's peak and, not least, his ridiculous accent that grew thicker or thinner depending on who he was talking to, did not look like a threat. He looked funny, a joke, a music-hall vampire. It had never previously occurred to Vimes that, just possibly, the joke was on other people.