“They were small, brightly coloured, happy little creatures who secreted some of the nastiest toxins in the world, which is why the job of looking after the large vivarium where they happily passed their days was given to first-year students, on the basis that if they got things wrong there wouldn't be too much education wasted.”

“Unseen University was much bigger on the inside. Thousands of years as the leading establishment of practical magic in a world where dimensions were largely a matter of chance in any case had left it bulging in places where it shouldn't have places. There were rooms containing rooms which, if you entered them, turned out to contain the room you'd started with, which can be a problem if you are in a conga line.”

“The disc, being flat, has no real horizon. Any adventurous sailor who got funny ideas from staring at eggs and oranges for too long and set out for the antipodes soon learned that the reason why distant ships sometimes looked as though they were disappearing over the edge of the world was that they were disappearing over the edge of the world.”

“There were plotters, there was no doubt about it. Some had been ordinary people who'd had enough. Some were young people with no money who objected to the fact that the world was run by old people who were rich. Some were in it to get girls. And some had been idiots as mad as Swing, with a view of the world just as rigid and unreal, who were on the side of what they called 'the people'. Vimes had spent his life on the streets, and had met decent men and fools and people who'd steal a penny from a blind beggar and people who performed silent miracles or desperate crimes every day behind the grubby windows of little houses, but he'd never met The People.People on the side of The People always ended up disappointed, in any case. They found that The People tended not to be grateful or appreciative or forward-thinking or obedient. The People tended to be small-minded and conservative and not very clever and were even distrustful of cleverness. 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. What would run through the streets soon enough wouldn't be a revolution or a riot. It'd be people who were frightened and panicking. It was what happened when the machinery of city life faltered, the wheels stopped turning and all the little rules broke down. And when that happened, humans were worse than sheep. Sheep just ran; they didn't try to bite the sheep next to them.”

“BE HAPPY WITH WHAT YOU’VE GOT, IS THAT THE IDEA?“That’s about the size of it, master. A good god line, that. Don’t give ’em too much and tell ’em to be happy with it. Jam tomorrow, see.”THIS IS WRONG. Death hesitated. I MEAN…IT’S RIGHT TO BE HAPPY WITH WHAT YOU’VE GOT. BUT YOU’VE GOT TO HAVE SOMETHING TO BE HAPPY ABOUT HAVING. THERE’S NO POINT IN BEING HAPPY ABOUT HAVING NOTHING.”

“They know that people need witches; they need the unofficial people who understand the difference between right and wrong, and when right is wrong and when wrong is right. The world needs the people who work around the edges. They need the people who can deal with the little bumps and inconveniences. And little problems. After all, we are almost all human. Almost all of the time.”

“Look, this is just the cemetery. It's got bylaws and things! It's not Transylvania! There's just dead people here! That doesn't make it scary, does it? Dead people are people who were living once! You wouldn't be so worked up if there were living people buried here, would you?”