The real world was far too real to leave neat little hints. It was full of too many things. It wasn't by eliminating the impossible that you got to the truth, however improbable; it was by the much harder process of eliminating the possibilities.

When I was a kid, I read the science-fiction shelves, and I read the fantasy shelves.

Botswana is also the only country in the world with a colour in its flag meant to represent rain (a sort of blue-grey). Not many people know this.

Oh, my dear Vimes, history changes all the time. It is constantly being re-examined and re-evaluated, otherwise how would we be able to keep historians occupied? We can't possibly allow people with their sort of minds to walk around with time on their hands.

If you try to to take my bananas from me, I will reclaim them from your cold dead hands.

Do not meddle in the affairs of wizards because a refusal often offends, I read somewhere.

That's the Ankh-Morpork instinct, Vimes thought. Run away, and then stop and see if anything interesting is going to happen to other people.