But the helmet had gold decoration, and the bespoke armorers had made a new gleaming breastplate with useless gold ornamentation on it. Sam Vimes felt like a class traitor every time he wore it. He hated being thought of as one of those people that wore stupid ornamental armor. It was gilt by association.

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.

It was Carrot who'd suggested to the Patrician that hardened criminals should be given the chance to 'serve the community' by redecorating the homes of the elderly, lending a new terror to old age and, given Ankh-Morpork's crime rate, leading to at least one old lady having her front room wallpapered so many times in six months that now she could only get in sideways.

When they're standing right in front of you, kings are a kind of speech impediment.

Two types of people laugh at the law: those that break it and those that make it.

And so the children of the revolution were faced with the age-old problem: it wasn't that you had the wrong kind of government, which was obvious, but that you had the wrong kind of people. As soon as you saw people as things to be measured, they didn't measure up.

That's a nice song,' said young Sam, and Vimes remembered that he was hearing it for the first time. It's an old soldiers' song,' he said. Really, sarge? But it's about angels.' Yes, thought Vimes, and it's amazing what bits those angels cause to rise up as the song progresses. It's a real soldiers' song: sentimental, with dirty bits. As I recall, they used to sing it after battles,’ he said. 'I've seen old men cry when they sing it,’ he added. Why? It sounds cheerful.' They were remembering who they were not singing it with, thought Vimes. You'll learn. I know you will.