When all else failed, she tried being reasonable.

There have been times, lately, when I dearly wished that I could change the past. Well, I can’t, but I can change the present, so that when it becomes the past it will turn out to be a past worth having.

History tends to change people who think they're changing it.

My character - and for that matter my worst habits - could only be described by someone else. You can't open a box with the crowbar inside it.

The Captain of the Watch says if you're still in the City by sunrise he will personally have you buried alive.

They suffered from the terrible delusion that something could be done. They seemed prepared to make the world the way they wanted it or die in the attempt, and the trouble with dying in the attempt was that you died in the attempt.

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.