There are, it has been said, two types of people in the world. There are those who, when presented with a glass that is exactly half full, say: this glass is half full. And then there are those who say: this glass is half empty. The world belongs, however, to those who can look at the glass and say: What's up with this glass? Excuse me? Excuse me? This is my glass? I don't think so. My glass was full! And it was a bigger glass! Who's been pinching my beer?

Thou shalt not submit thy god to market forces.

I don't want to hurt you, Mistress Weatherwax," said Mrs Gogol. "That's good," said Granny. "I don't want you to hurt me either.

Shoot the dictator and prevent the war? But the dictator is merely the tip of the whole festering boil of social pus from which dictators emerge; shoot him and there'll be another one along in a minute. Shoot him too? Why not shoot everyone and invade Poland?

Technically, the city of Ankh-Morpork is a Tyranny, which is not always the same thing as a monarchy, and in fact even the post of Tyrant has been somewhat redefined by the incumbent, Lord Vetinari, as the only form of democracy that works. Everyone is entitled to vote, unless disqualified by reason of age or not being Lord Vetinari.

The thief, as will become apparent, was a special type of thief. This thief was an artist of theft. Other thieves merely stole everything that was not nailed down, but this thief stole the nails as well.

Logic is a wonderful thing but doesn't always beat actual thought.