This book had two authors, and they were both the same person.

A number of religions in Ankh-Morpork still practiced human sacrifice, except that they didn't really need to practice any more because they had got so good at it.

Sometimes the truth is arrived at by adding all the little lies together and deducting them from the totality of what is known.

But then science is nothing but a series of questions that lead to more questions.

There was no himself in himself.

It is said that the Devil has all the best tunes. This is broadly true. But Heaven has the best choreographers

At some time in the recent past someone had decided to brighten the ancient corridors of the University by painting them, having some vague notion that Learning Should Be Fun. It hadn’t worked. It’s a fact known throughout the universes that no matter how carefully the colors are chosen, institutional decor ends up as either vomit green, unmentionable brown, nicotine yellow or surgical appliance pink. By some little-understood process of sympathetic resonance, corridors painted in those colors always smell slightly of boiled cabbage—even if no cabbage is ever cooked in the vicinity.