From left, University of Texas President Bill Powers, Bill Powers, former chair of the UT Computer Science Department, and Microsoft founder Bill Gates, look at the new Bill and Melinda Gates Computer Science Complex on the UT campus in Austin, Texas, Wednesday March 6, 2013.
J Strother Moore, left, former chair of the University of Texas Computer Science Department, and University of Texas President Bill Powers, center, applaud after Microsoft founder Bill Gates, right, helped cut the ribbon on the new Bill and Melinda Gates Computer Science Complex on the UT campus on Wednesday March 6, 2013, in Austin, Texas.
Microsoft founder Bill Gates speaks at the ribbon cutting ceremony for the new Bill and Melinda Gates Computer Science Complex on the UT campus in Austin, Texas, on Wednesday March 6, 2013.
The cover of the Forbes 400 issue on philanthropy is shown in this handout photo supplied to Reuters September 18, 2012 featuring 12 of the more than 150 influential entrepreneurs the magazine brought together for a private discussion on ways to help solve some of the world�s most intractable problems. From Warren Buffett and Oprah to Bill and Melinda Gates, some of the world�s greatest philanthropists with a combined net worth of $126 billion attended the summit. The Forbes 400 issue goes on sale September 21, 2012.
This June 26, 2012 image provided by Forbes, and the pull-out cover for the magazine's Sept. 21 issue shows from left to right: Warren Buffett, Oprah Winfrey, Bill Gates, Melinda Gates, Pete Petersen, Leon Black, Jon Bon Jovi (seated on the ground), Marc Benioff, David Rubenstein, Steve Case, Laura Arrillaga-Andreessen, Marc Andreessen posing for a portrait in the Trustees Room at the New York Public Library in New York. The twelve individuals shown were part of a group attending a Forbes convened event called the Forbes 400 Summit On Philanthropy. During the event, the magazine's editors invited twelve of the leading philanthropists in the U.S. to pose for the portrait.
Bill Gates Sr., (L) former South African President Nelson Mandela and former U.S. President Jimmy Carter hold babies at the Zola clinic, in the Soweto Township outside of Johannesburg, South Africa, 07 March 2002. The babies were born to mothers who have tested positive for HIV. Bill Gates Sr. is traveling in Africa with President Carter on a trip for the Bill and Melinda Gates foundation in an effort to focus attention on HIV and AIDS prevention. The foundation is also working to reduce the stigma that comes with a positive HIV test.