he joined us on set along with carol lummis, who came out with the new book, "tap dancing to work: warren buffett on practically everything 1966 to 2012." a compilation about the oracle of omaha. >> what is the principle of warren buffett's life that keeps him who he is, but keeps him in his house and omaha. what's that thing in life that drove him in high school and drives him now? >> well, he does like to succeed, but money is nothing, absolutely nothing. he's always been driven and he got interested in invest, when he was -- well, his first trade was at age 11. i have four grandkids and none seem to be headed in that direction. and he just, he always was interested in every element of investing. >> so he had a goal. >> he had a goal. and you're right, he likes winning. you like winning, you like succeeded, but money, and i'm not just saying this patronizing, because most really rich people i know, money is something that comes along with doing something they love, right? >> absolutely. >> so for you, what was that thing that drove you from an early age? >> i got interested in investing