But is all this true?" said Brutha. Didactylos shrugged. "Could be. Could be. We are here and it is now. The way I see it is, after that, everything tends towards guesswork." "You mean you don't KNOW it's true?" said Brutha. "I THINK it might be," said Didactylos. "I could be wrong. Not being certain is what being a philosopher is all about.

I'm referred to, I see, as 'the biggest banker in modern publishing'. Now there's a line that needed the celebrated Guardian proof-reading.

In order to have a change of fortune at the last minute, you have to take your fortune to the last minute.

Probably the last man who knew how it worked had been tortured to death years before. Or as soon as it was installed. Killing the creator was a traditional method of patent-protection.

Aziraphale collected books. If he were totally honest with himself he would have to have admitted that his bookshop was simply somewhere to store them. He was not unusual in this. In order to maintain his cover as a typical second-hand book seller, he used every means short of actual physical violence to prevent customers from making a purchase. Unpleasant damp smells, glowering looks, erratic opening hours - he was incredibly good at it.

'Discworld' is taking something that you know is ridiculous and treating it as if it is serious, to see if something interesting happens when you do so.

Every intelligent being, whether it breathes or not, coughs nervously at some time in its life.