Warren Buffett- Through the Years

Warren Buffett, chairman and CEO of Berkshire Hathaway, right, and Microsoft co-founder Bill Gates play doubles against table tennis prodigy Ariel Hsing in Omaha, Neb., Sunday, May 6, 2012.

Buffett sings with University of Nebraska cheerleaders prior to the annual shareholders meeting in Omaha, Neb., Saturday, May 5, 2012.

Warren and Astrid M. Buffett arrive for a state dinner in honor of British Prime Minister David Cameron at the White House on March 14, 2012 in Washington, DC.

Buffett and Business Wire CEO Cathy Baron Tamraz look on at the New York Stock Exchange before ringing the opening bell on Sept. 30, 2011.

Warren and Astrid Buffett attend the Allen & Co. Sun Valley Conference on July 6, 2011, in Sun Valley, Idaho. The conference has been hosted annually by the investment firm each July since 1983 and Buffett is a regular attendee.

Buffett sits with his kids, from left, Howard, Susie and Peter, on the floor of the Berkshire Hathaway shareholders meeting at the Qwest Center in Omaha, Neb., on Saturday, April 30, 2011.

Buffett receives the Medal of Freedom from President Obama at the White House on Feb. 15, 2011.

Kyle Busch (L), driver of the #18 Pedigree Toyota, and Buffett talk on the grid prior to the start of the NASCAR Sprint Cup Series Emory Healthcare 500 at Atlanta Motor Speedway on Sept. 5, 2010 in Hampton, Georgia.

Buffett plays the ukulele and sings with the Quebe Sisters Band prior to participating in his company's annual shareholders meeting Saturday, May 1, 2010, in Omaha, Neb.

Buffett listens during a hearing before the Senate Finance Committee on Nov. 14, 2007.

Former California Governor Arnold Schwarzenegger looks at Buffett during a meeting with Wall Street investors at the Ritz Carlton hotel on Feb. 25, 2004 in New York City.

Buffett stands with employees of Benjamin Moore Paints at its Clifton, N.J., distribution center on Tuesday, May 8, 2001. Buffett's Berkshire Hathaway officially became Benjamin Moore's owner on Jan. 1, 2001.

Buffett swings a bat at Rosenblatt Stadium in Omaha, Neb., on Saturday, April 28, 2001, as part of the traditional activities taking place during the annual Berkshire Hathaway shareholders meeting.

Gates and Buffett play a hand of bridge during the Omaha bridge tournament on Saturday, Dec. 2, 2000, in Omaha, Neb.

Buffett arrives with his first wife, the late Susan Buffett, at the White House for a state dinner in honor of the former British Prime Minister Tony Blair and his wife Cherie, in 1998.

Buffett, then interim chairman of Solomon Brothers, Inc., gestures during testimony before a House Commerce subcommittee on Sept. 5, 1991.

Buffett circa 1980.