Plot exposition that can be gently wound out by the authorial voice and internal monologue of a character in the length of a page has to be delivered in a matter of seconds on the stage.

Cutangle: While I'm still confused and uncertain, it's on a much higher plane, d'you see, and at least I know I'm bewildered about the really fundamental and important facts of the universe. Treatle: I hadn't looked at it like that, but you're absolutely right. He's really pushed back the boundaries of ignorance. They both savoured the strange warm glow of being much more ignorant than ordinary people, who were only ignorant of ordinary things.

Why do you go away? So that you can come back. So that you can see the place you came from with new eyes and extra colors. And the people there see you differently, too. Coming back to where you started is not the same as never leaving.

Granny Weatherwax was firmly against fiction. Life was hard enough without lies floating around and changing the way people thought.

I'd like to sell a lot of books.

There's a saying that all roads lead to Ankh-Morpork. And it's wrong. All roads lead away from Ankh-Morpork, but sometimes people just walk along them the wrong way.

But of course, what the eagle does not realize is that it is participating in a very crude form of natural selection.One day a tortoise will learn how to fly.