I enjoy popularisation and I think I'm reasonably good at it. I also think it's a duty. It's just so pedagogically stupid to forget how difficult one found these ideas oneself to begin with.
A lot of things I am, and a lot of things I am not. But I think I'm about as good an American as there is. I love this country. It's been very, very good to me. And it will be good to anybody if they are willing to give of themselves.

