"Why stay?"   (quote)

"There is a certain, really quite unimaginable intellectual interest that one gets from working in the context where you have to put broad theoretical and fairly complex conceptual issues to a test in the marketplace. It's a type of activity which forces economists like ourselves to be acutely aware of the fact that our actions have consequences."
 -Alan Greenspan, in Maestro, answering a reporter's question: "Why stay?"