Thief of Time (Discworld, #26; Death, #5)

by Terry Pratchett

“Sometimes I really think people ought to have to pass a proper exam before they’re allowed to be parents. Not just the practical, I mean.”

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.

Insanity depended on your point of view, he always said, and if it was the view through your own underpants then everything looked fine.