When a man is tired of Ankh-Morpork, he is tired of ankle-deep slurry.

Stand before your god, bow before your king, kneel before your man.

But the purpose of the book is not the horror, it is horror's defeat.

The secret is not to dream," she whispered. "The secret is to wake up. Waking up is harder. I have woken up and I am real. I know where I come from and I know where I'm going. You cannot fool me any more. Or touch me. Or anything that is mine.

It is a popular fact that nine-tenths of the brain is not used and, like most popular facts, it is wrong. Not even the most stupid Creator would go to the trouble of making the human head carry around several pounds of unnecessary gray goo if its only real purpose was, for example, to serve as a delicacy for certain remote tribesmen in unexplored valleys.

Don't be smart. Smart is only a polished version of dumb. Try intelligence. It will surely see you through.

In ancient times cats were worshiped as gods; they have not forgotten this.