I don't want to hurt you, Mistress Weatherwax," said Mrs Gogol. "That's good," said Granny. "I don't want you to hurt me either.

Be careful what you wish for. You never know who will be listening.

Knowledge is dangerous, which is why governments often clamp down on people who can think thoughts above a certain caliber.

Zoology, eh? That's a big word, isn't it." "No, actually it isn't," said Tiffany. "Patronizing is a big word. Zoology is really quite short.

Geography is just physics slowed down, with a couple of trees stuck in it.

The elevator shaft was a kind of heat sink. Hot food was cold by the time it arrived. Cold food got colder. No one knew what would happen to ice cream, but it would probably involve some rewriting of the laws of thermodynamics.

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.