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

The thing about witchcraft," said Mistress Weatherwax, "is that it's not like school at all. First you get the test, and then afterward you spend years findin' out how you passed it. It's a bit like life in that respect

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

Anyway, just because you're sworn enemies doesn't mean you can't be friends, does it?

In the world I live in, 'not worse' is nearly as good as 'better'.

Sergeant Colon of the Ankh-Morpork City Guard was on duty. He was guarding the Brass Bridge, the main link between Ankh and Morpork. From theft. When it came to crime prevention, Sergeant Colon found it safest to think big.

Some people are heroes. And some people jot down notes.