“The Librarian considered matters for a while. So…a dwarf and a troll. He preferred both species to humans. For one thing, neither of them were great readers. The Librarian was, of course, very much in favor of reading in general, but readers in particular got on his nerves. There was something, well, sacrilegious about the way they kept taking books off the shelves and wearing out the words by reading them. He liked people who loved and respected books, and the best way to do that, in the Librarian’s opinion, was to leave them on the shelves where Nature intended them to be.”

“Of course, like all the informal inhabitants of the University the roaches were a little unusual, but there was something particularly unpleasant about the sound of billions of very small feet hitting the stones in perfect time.Rincewind stepped gingerly over the marching column. The Librarian jumped it.The Luggage, of course, followed them with a noise like someone tapdancing over a bag of crisps.”

“People flock in, nevertheless, in search of answers to those questions only librarians are considered to be able to answer, such as "Is this the laundry?" "How do you spell surreptitious?" and, on a regular basis, "Do you have a book I remember reading once? It had a red cover and it turned out they were twins.”

“Many bad things were done under the Evil Empire" she said. "The best we can do now is undo them. Will you assist in this endeavor?" "In every way that I can" said Nutt."I would like you to teach them civilized behavior," said Ladyship coldly.He appeared to consider this. "Yes, of course, I think, that would be quite possible," he said. "And who would you send to teach the humans?"There was a brief outburst of laughter from Vetinari, who immediately cupped his hand over his mouth. "Oh I do beg your pardon," he said.”

“Crowley had always known that he would be around when the world ended, because he was immortal and wouldn’t have any alternative. But he hoped it was a long way off. Because he rather liked people. It was major failing in a demon. Oh, he did his best to make their short lives miserable, because that was his job, but nothing he could think up was half as bad as the stuff they thought up themselves. They seemed to have a talent for it. It was built into the design, somehow. They were born into a world that was against them in a thousand little ways, and then devoted most of their energies to making it worse. Over the years Crowley had found it increasingly difficult to find anything demonic to do which showed up against the natural background of generalized nastiness. There had been times, over the past millennium, when he’d felt like sending a message back Below saying, Look we may as well give up right now, we might as well shut down Dis and Pandemonium and everywhere and move up here, there’s nothing we can do to them that they don’t do to themselves and they do things we’ve never even thought of, often involving electrodes. They’ve got what we lack. They’ve got imagination. And electricity, of course. One of them had written it, hadn’t he…”Hell is empty, and all the devils are here.”

“He helped the Librarian up. There was a red glow in the ape's eyes. It had tried to steal his books. This was probably the best proof any wizard could require that the trolleys were brainless.”

“The great authors were great readers, and one way to understand them is to read the books they read.”