Warren Buffett

Warren Buffett made a name for himself as the CEO and Chairman of Berkshire Hathaway. The businessman was just 19 when he graduated from University of Nebraska-Lincoln and immediately enrolled at a Columbia University graduate program. He further honed his investment skills during his time at the New York Institute of Finance, and began to create business partnerships.He eventually partnered up with Charlie Munger to create Buffett Partnership, and the firm later acquired textile manufacturing firm Berkshire Hathaway. Buffett became the company's chairman in 1970s, and still remains in the position. Buffett is now among the wealthiest people in the world, and has a net worth of around $78.9 billion. Instead of leaving the majority of his fortune with his children, Buffett pledged to donate 99% of it to charity, including the Buffett Family Foundation and the Bill & Melinda Gates Foundation. Over the last decade, the billionaire has given away much of his net worth to total an estimated lifetime donation of $21.5 billion. "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," the business tycoon wrote in a letter to the Gates Foundation.