Premise: Warren Edward Buffett ( [ ˈbʌfᵻt ] born August 30 , 1930 ) is an American business magnate , investor , and philanthropist . Buffett is a notable philanthropist , having pledged to give away 99 percent of his fortune to philanthropic causes , primarily via the Bill & Melinda Gates Foundation . In 2009 , with Bill Gates and Mark Zuckerberg , Warren founded The Giving Pledge , whereby billionaires pledge to give away at least half of their fortunes .
Hypothesis: Warren Buffett refuses to be a philanthropist.
Label: CONTRADICTION