Skip the first 1:10 mins.
It's funny that Bono is in this video, as Bill, Melinda, and Bono won Time's Persons of the Year in 2005.
What I like best about Bill is his Foundation's fight against Malaria.
"Malaria kills an estimated 1.2 million people a year, the large majority of them African children who have yet to reach their sixth birthday, and the toll has risen sharply over the past two decades."
Also, I always had great respect for Warren Buffett, but it increased ten fold when he decided to give most of his money to the Gates Foundation.