“I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.”

“There's a door.""Where does it go?""It stays where it is, I think.”

“Well, I think," said Nobby, "that when you rule out the impossible, whatever is left, however improbable, ain't worth hanging around for on a cold night wonderin' about when you could be getting on the outside of a big drink.”

“There is a rumour going around that I have found God. I think this is unlikely because I have enough difficulty finding my keys, and there is empirical evidence that they exist.”

“The brain works fast when it thinks it’s about to be cut in half.”

“Time and space were, from Death's point of view, merely things that he'd heard described. When it came to Death, they ticked the box marked Not Applicable. It might help to think of the universe as a rubber sheet, or perhaps not.”

“The more you think about it, the more amazing the everyday world of human beings becomes: most of it doesn't actually exist at all.”