" What excites me about America is its social mobility, people continually rising from the bottom to the top and altering the culture in the process. On another level, however, we remain a nation that lives in social ghettos. Celebrities generally congregate around other celebrities; academics and intellectuals are cloistered in their worlds; people like to associate with those of their kind. If we leave these narrow worlds, it is usually as an observer of another way of life. "