>> there is a story that einstein tells that when he would get stuck on physics problem sometimes he would stop and play the violin and come back and people said that you are actually exercising different parts of the brain when you do that and that produces the literal -- >> when he was trying to get general relativity, living in berlin he played mozart on his violin and would say that reconnects me to the harmony of the universe. that ability to feel harmonies of music and nature's laws that is exemplar of what we are talking about. >> is there a difference between the kind of genius that albert einstein has and the inventiveness of ben franklin? a lot of people say i'm never going to be einstein. i wonder what made ben franklin