Given my professional interests (ideofact is decidedly amateur), this quote suggests that I should read this book:
Just as it is impossible to know when a swimming fish is drinking water, so it is impossible to find out when a government servant is stealing money.
But do I want to spend $42.95 on it? Or would I rather buy more Case Studies in Cultural Anthropology?
(Note: I came across that quote in this book, which I'm really enjoying.)