Racism was not a problem on the Discworld, because - what with trolls and dwarfs and so on - speciesism was more interesting. Black and white lived in perfect harmony and ganged up on green.

The universe is, instant by instant, recreated anew. There is in truth no past, only a memory of the past. Blink your eyes, and the world you see next did not exist when you closed them. Therefore, the only appropriate state of the mind is surprise. The only appropriate state of the heart is joy. The sky you see now, you have never seen before. The perfect moment is now. Be glad of it.

Goodness is about what you do. Not who you pray to.

You can't go around building a better world for people. Only people can build a better world for people. Otherwise it's just a cage. Besides you don't build a better world by choppin' heads off and giving decent girls away to frogs.

I would like permission to fetch a note from my mother, sir' Ridcully sighed. 'Rincewind, you once informed me, to my everlasting puzzlement, that you never knew your mother because she ran away before you were born. Distinctly remember writing it down in my diary. Would you like another try?' 'Permission to go and find my mother?'

There is a soak-the-rich attitude in the air, a feeling that if you have a lot of money you must have got it by some ghastly means. I can quite happily say there was never any family money. All the money we got was mine, just from writing books.

Some police forces would believe anything. Not the Metropolitan police, though. The Met was the hardest, most cynically pragmatic, most stubbornly down-to-earth police force in Britain. It would take a lot to faze a copper from the Met. It would take, for example, a huge, battered car that was nothing more nor less than a fireball, a blazing, roaring, twisted metal lemon from Hell, driven by a grinning lunatic in sunglasses, sitting amid the flames, trailing thick black smoke, coming straight at them through the lashing rain and wind at eighty miles an hour.That would do it every time.