. >> people know the names of robert redford, ashley judd, people who are famous. but you make an interesting point -- is not the obvious that brings unhappiness, right? >> that is right. bono is a huge rock star. whether you like him or not, like his politics or not -- he did win a nobel prize, but even the helps him to do good. many of these people that i profile, i use them to juxtapose regular people, the subway heroes who showed empathy. the man who drove into the tracks to save someone's life. a teacher who started a scholarship program to give away her life and career to give back. how these people are so far julies, and rich and famous or people who are not brand names, they have been able to unlock the power because of having it -- power and seeds of happiness by following these tenets. >> you mentioned michael hendrickson, and walter scott global. pick one of them, and just say why these folks bring you happiness. >> ken holden suffers from mental retardation, and no one thought he would be able to function with a computer. we started something called e-