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.
Terry PratchettLet's see, now... in HOGFATHER there are a number of stabbings, someone's killed by a man made of knives, someone's killed by the dark, and someone just been killed by a wardrobe. It's a book about the magic of childhood. You can tell.
Terry PratchettWhat is magic? There is the wizard's explanation... wizards talk about candles, circles, planets, stars, bananas, chants, runes and the importance of having at least four good meals every day.
Terry PratchettThey were small, brightly coloured, happy little creatures who secreted some of the nastiest toxins in the world, which is why the job of looking after the large vivarium where they happily passed their days was given to first-year students, on the basis that if they got things wrong there wouldn't be too much education wasted.
Terry Pratchett