(Applause) (Applause ends) You may be wondering why I'm clapping. Well, I did this at a school in Boston with about 70 seventh graders, 12-year-olds. I did exactly what I did with you, and I explained the whole thing. At the end, they went crazy, clapping. I was clapping. They were clapping. Finally, I said, "Why am I clapping?" And one of them said, "Because we were listening." (Laughter) Think of it. 1,600 people, busy people, involved in all sorts of different things, listening, understanding and being moved