JS Bragg

“It's not worth doing something unless someone, somewhere, would much rather you weren't doing it.”
― Terry Pratchett

“Time is a drug. Too much of it kills you.”
― Terry Pratchett, Small Gods

“A good library will never be too neat, or too dusty, because somebody will always be in it, taking books off the shelves and staying up late reading them.”
― Lemony Snicket, Horseradish: Bitter Truths You Can't Avoid

“Some humans would do anything to see if it was possible to do it. If you put a large switch in some cave somewhere, with a sign on it saying 'End-of-the-World Switch. PLEASE DO NOT TOUCH', the paint wouldn't even have time to dry.”
― Terry Pratchett, Thief of Time