Bill Gates said he'd rather fund vaccines to 'save lives' than go to Mars, but he thinks someday Elon Musk will be a 'great philanthropist'

Tech Insider
Elon Musk Bill Gates

Susan Walsh/AP; Mike Cohen/Getty Images for The New York Times

Warren Buffett is the only top-10 billionaire to become poorer this year after Berkshire Hathaway missed out on the stock market's rally

Tech Insider
warren buffett close up
Warren Buffett.

REUTERS/Rick Wilking

Subscribe to Philanthropy