Currently, it was leading him through a neighborhood that was on the downside of whatever curve you hoped you'd bought your property on the upside of. Graffiti and garbage were everywhere here. They were everywhere in the city, if it came to that, but elsewhere the garbage was better quality, and the graffiti was close to being correctly spelled. The whole area was waiting for something to happen, like a really bad fire.

The three rules of the Librarians of Time and Space are: 1) Silence; 2) Books must be returned by no later than the date shown; and 3) Do not interfere with the nature of causality.

Personal’s not the same as important. People just think it is.

If there was anything that depressed him more than his own cynicism, it was that quite often it still wasn't as cynical as real life.

I tell you, commander, it's true that some of the most terrible things in the world are done by people who think, genuinely think, that they're doing it for the best, especially if there is some god involved.

Oh, my dear Vimes, history changes all the time. It is constantly being re-examined and re-evaluated, otherwise how would we be able to keep historians occupied? We can't possibly allow people with their sort of minds to walk around with time on their hands.

The people who guard the rainbow don't like those who get in the way of the sun.