Interesting thing, these fellows never seem to get the idea of perspective-' The Bursar thought, or received the thought: that's because perspective is a lie. If I know a pond is round then why should I draw it oval? I will draw it round because round is true. Why should my brush lie to you just because my eye lies to me?

Steal five dollars and you're a common thief. Steal thousands and you're either the government or a hero.

Everything is a test.

Someone out there was about to find that their worst nightmare was a maddened Librarian. With a badge.

Zoology, eh? That's a big word, isn't it." "No, actually it isn't," said Tiffany. "Patronizing is a big word. Zoology is really quite short.

Words are the litmus paper of the mind.

Poets have tried to describe Ankh-Morpork. They have failed. Perhaps it's the sheer zestful vitality of the place, or maybe it's just that a city with a million inhabitants and no sewers is rather robust for poets, who prefer daffodils and no wonder. So let's just say that Ankh-Morpork is as full of life as an old cheese on a hot day, as loud as a curse in a cathedral, as bright as an oil slick, as colourful as a bruise and as full of activity, industry, bustle and sheer exuberant busyness as a dead dog on a termite mound.