It was sad music. But it waved its sadness like a battle flag. It said the universe had done all it could, but you were still alive.

If you really want to upset a witch, do her a favor which she has no means of repaying. The unfulfilled obligation will nag at her like a hangnail.

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.

I think when people mean that Discworld books have become darker they really mean the series is growing up. In 'The Colour of Magic' most of the city is set alight. It's a joke, in much the same way that the Earth is destroyed almost at the start of Douglas Adams's 'The Hitchhikers Guide to the Galaxy.'

Would a minute have mattered? No, probably not, although his young son appeared to have a very accurate internal clock. Possibly even 2 minutes would be okay. Three minutes, even. You could go to five minutes, perhaps. But that was just it. If you could go for five minutes, then you'd go to ten, then half an hour, a couple of hours...and not see your son all evening. So that was that. Six o'clock, prompt. Every day. Read to young Sam. No excuses. He'd promised himself that. No excuses. No excuses at all. Once you had a good excuse, you opened the door to bad excuses.

We who think we are about to die will laugh at anything.

You know, I never imagined there were he-dryads. Not even in an oak tree." One of the giants grinned at him. Druellae snorted. "Stupid! Where do you think acorns come from?