盖茨巴菲特 urged the United States more than the rich to donate at least half of the wealth to do good.

<P> Microsoft founder Bill Gates and the U.S., "Warren" Warren Buffett is recognized as the global wealthy. .They in a recent charity event, called the billionaire who donate at least half of their wealth, to charity. .</ P> <P> former president of the Bill and Melinda Gates Foundation Patty Stonesifer 16, told The Associated Press, Gates and Buffett since last year, has been to persuade other rich in .lifetime or after his death donated wealth. .</ P> <P> "Forbes" magazine, the U.S. emitted 400 richest people have wealth worth about 1.2 trillion U.S. dollars. .Gates and Buffett want by lobbying to make commitments to donate the total wealth to 600 billion U.S. dollars. .</ P> <P> "Chronicle of Philanthropy," said Palmer, editor of Si Taixi, Gates and Buffett's goal is a challenge. .These 400 billionaires, only 17 people in the "Chronicle of Philanthropy," ranking of the most generous person. .While many wealthy may do good or intend to after the death of an anonymous donation, but now most of the money of the donors are not billionaires. .</ P> <P> billionaires Bill Gates and Warren Buffett called for pledges made public and issued a statement intended to explain the donations. .</ P> <P> they said in a statement: "Please make a moral commitment, not necessarily legally binding contract." </ P> <P> in the United States, Gates and Buffett are keen .wealthy charity. .</ P>.