Warren Edward Buffett,born on August 30,1930,is an American investor, industrialist and philanthropist. He is one of the most successful investors in the world.Often called"the legendary investor",he is the primary shareholder,chairman and CEO of Berkshire Hathaway.He was ranked as the world's wealthiest person in 2009 and is currently the third wealthiest person in the world as of 2010. Buffett is also a notable philanthropist, having pledged to gave away 99 percent of his fortune to philanthropic causes, primarily via the Gates Foundations. In 2009 after donating billions of dollars to charity, Buffett was ranked as the second richest man in the United States, with only Bill Gates being ranked higher than Buffett. In June 2006,he announced a plan away his fortune to charity, with 83% of it going to the Bill & Melinda Gates Foundation, making it the largest charitable donation in history. A significant proportion of his wealth will not go to his children. His action is consistent with his principle that is against the transfer of great fortunes from one generation to the next. Buffett once commented," I want to give my kids just enough so that they would feel that they could do anything, but not so much that they would feel like doing nothing".