I decided when I was asked to do this that what I really wanted to talk about. I was one of the fortunate few and enjoyed his presence. And I'm going to tell you. I'm sure there are people here about the Richard Feynman they knew. And it would probably be. Richard Feynman was a very complex man. He was a man of many, many parts. He was, of course, foremost, He was an actor. You saw him act. I also had the good fortune up in the balcony. They were fantastic. He was a philosopher. He was a drum player. He was a teacher par excellence. Richard Feynman was also a showman, an enormous showman. He was brash, irreverent. He was full of macho, He loved intellectual battle. He had a gargantuan ego. But the man had, somehow, a lot of room at the bottom. And what I mean by that I can't speak for anybody else, a lot of room for another big ego. Well, not as big as his, but fairly big. I always felt good with Dick Feynman. It was always fun to be with him. He always made me feel smart. How can somebody like that? Somehow he did. He made me feel smart. He made me feel we were both smart, and the two of us could solve. And in fact, we did sometimes. We never published a paper together, but we did have a lot of fun. He loved to win, win these little macho games. And he didn't only play them with me, He would almost always win. But when he didn't win, when he lost, he would laugh and seem as if he had won. I remember once he told me a story about a joke the students played on him. I think it was for his birthday -- they took him for lunch to a sandwich place in Pasadena. It may still exist; I don't know. Celebrity sandwiches was their thing. You could get a Marilyn Monroe sandwich. You could get a Humphrey Bogart sandwich. The students went there in advance, and arranged that they'd all order. One after another, they came in. Feynman loved this story. He told me this story. When he finished the story, I said to him, "Dick, I wonder what between a Feynman sandwich. And without skipping a beat at all, he said, "Well, they'd be about the same. The only difference is a Susskind "Ham" as in bad actor. Well, I happened to have been and I said, "Yeah, The truth of the matter is that a Feynman sandwich but absolutely no baloney. What Feynman hated worse was intellectual pretense -- phoniness, false sophistication, jargon. I remember sometime during the mid-'80s, Dick and I and Sidney Coleman up in San Francisco -- up in San Francisco for dinner. And the last time the rich guy invited us, he also invited a couple of philosophers. These guys were philosophers of mind. Their specialty was the philosophy. And they were full of all kinds of jargon. I'm trying to remember the words -- "monism," "dualism," I didn't know what those meant, neither. And what did we talk about? Well, what do you talk about? There's one obvious thing to talk about: Can a machine become a mind? Can you build a machine that thinks like a human being? We sat around and talked about this. But the trouble with the philosophers is that they were philosophizing when they should have been. It's a scientific question, after all. And this was a very, very around Dick Feynman. Feynman let them have it. It was brutal; it was funny. But it was really brutal. He really popped their balloon. But the amazing thing was -- he wasn't feeling too well, And Sidney and I were left there. And the amazing thing. They were so happy. They had met the great man; they had been instructed by the great man; they had an enormous amount of fun having their faces shoved in the mud. And it was something special. I realized there was something even when he did what he did. Dick -- he was my friend; Dick and I had a little bit of a rapport. I think it may have been a special. We liked each other; I also like the intellectual macho games. Sometimes I would win, but we both enjoyed them. And Dick became convinced at some point that he and I had. I don't think he was right. I think the only point is we both like to talk about ourselves. But he was convinced of this. And the man was incredibly curious. And he wanted to understand that there was this funny connection. And one day, we were walking. We were in France, in Les Houches. We were up in the mountains, 1976. And Feynman said to me, "Leonardo ..." The reason he called me "Leonardo" and he was practicing his French. And he said, "Leonardo, were you closer to your mother? I said, "Well, my real hero was my father. He was a working man, had a fifth-grade education.