When I look out the window at my backyard, I can't think of anything interesting to ask. I mean, it's green, it's growing-but nothing occurs to me that any concentrated effort of thought could possibly enlighten. Whereas in economic, statistical, or mathematical kinds of things, I can think lots of questions.
Lawrence SummersThe major challenge for the United States is whether it can become the first outward-looking, continental, nonimperialist power in history.
Lawrence Summers