“We're living in science fiction, but we don't realize it.”

“[Science fiction is] out in the mainstream now. You can tell by the way mainstream literary authors pillage SF while denying they're writing it!”

“Religion is not an exact science. Sometimes, of course, neither is science.”

“Oh, we're always all right. You remember that. We happen to other people.-Nanny Ogg”

“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.”

“We live and learn, or, perhaps more importantly we learn and live.”

“We sleepwalk through our lives, because how could we live if we were always this awake?”