Do not meddle in the affairs of wizards because a refusal often offends, I read somewhere.

There's a lot of science in it, and as Slartibartfast [in The Hitchhiker's Guide to the Galaxy] said: 'I am a great fan of science, but I cannot do a quadratic equation.' I've never, ever been able to do one. I remember one occasion at Warwick University, when Jack and Ian were at their wits' end because I couldn't get it. I felt totally ashamed.

Because no man wants to be a coward in front of a cheese.

They may be called the Palace Guard, the City Guard, or the Patrol. Whatever the name, their purpose in any work of heroic fantasy is identical: it is, round about Chapter Three (or ten minutes into the film) to rush into the room, attack the hero one at a time, and be slaughtered. No one ever asks them if they want to. This book is dedicated to those fine men.

Commander, I always used to consider that you had a definite anti-authoritarian streak in you.” “Sir?” “It seems that you have managed to retain this even though you are authority.” “Sir?” “That’s practically zen.

It's vital to remember who you really are. It's very important. It isn't a good idea to rely on other people or things to do it for you, you see. They always get it wrong.

It is possible to live well with dementia and write best-sellers 'like wot I do.