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 PratchettAnd he dreamed the dream of all those who publish books, which was to have so much gold in your pockets that you would have to employ two people just to hold your trousers up.
Terry PratchettI'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
Terry PratchettWhat was supposed to be so special about a full moon? It was only a big circle of light. And the dark of the moon was only darkness. But halfway between the two, when the moon was between the worlds of light and dark, when even the moon lived on the edge...maybe then a witch could believe in the moon.
Terry Pratchett