A Thaum is the basic unit of magical strength. It has been universally established as the amount of magic needed to create one small white pigeon or three normal-sized billiard balls.

Nanny Ogg could see the future in the froth on a beer mug. It invariably showed that she was going to enjoy a refreshing drink which she almost certainly was not going to pay for.

Do you think it's possible for an entire nation to be insane?

Ridcully was to management what King Herod was to the Bethlehem Playgroup Association.

Interesting thing, these fellows never seem to get the idea of perspective-' The Bursar thought, or received the thought: that's because perspective is a lie. If I know a pond is round then why should I draw it oval? I will draw it round because round is true. Why should my brush lie to you just because my eye lies to me?

Actors, said Granny, witheringly. As if the world weren't full of enough history without inventing more.

I can no longer type, so I use TalkingPoint and Dragon Dictate. It's a speech-to-text program, and there's an add-on for talking which some guys came up with.