“No other library anywhere, for example, has a whole gallery of unwritten books - books that would have been written if the author hadn't been eaten by an alligator around chapter 1, and so on. Atlases of imaginary places. Dictionaries of illusory words. Spotter's guides to invisible things. Wild thesauri in the Lost Reading Room. A library so big that it distorts reality and has opened gateways to all other libraries, everywhere and everywhen...”

“Go anywhere you wish, talk to everyone. Ask any questions; you will be given answers. When you want to learn, you will be taught. Use the library. Open any book.”

“It looked like the sort of book described in library catalogues as 'slightly foxed', although it would be more honest to admit that it looked as though it had been badgered, wolved and possibly beared as well.”

“So much paperwork to read! So much paperwork to push away! So much paperwork to pretend he hadn't received and that might have been eaten by gargoyles.”

“Reality is not digital, an on-off state, but analog. Something gradual. In other words, reality is a quality that things possess in the same way that they possess, say, weight. Some people are more real than others, for example. It has been estimated that there are only about five hundred real people on any given planet, which is why they keep unexpectedly running into one another all the time.”

“But we're a university! We have to have a library!" said Ridcully. "It adds tone. What sort of people would we be if we didn't go into the library?""Students," said Senior Wrangler morosely.”

“There are many horrible sights in the multiverse. Somehow, though, to a soul attuned to the subtle rhythms of a library, there are few worse sights than a hole where a book ought to be.”