Bill & Melinda Gates Foundation charitable work. In the case of Bill and Melinda Gates, the work referenced was that of this foundation. In April 2010, Gates was invited to visit and speak at the Massachusetts Institute of Technology where he asked the students to take on the hard problems of the world in their futures. He also explained the nature and philosophy of his philanthropic endeavors. In 2010, the foundation's founders started the Commission on Education of Health Professionals for the 21st Century, entitled "Transforming education to strengthen health systems in an interdependent world." A 2011 survey of grantees found that many believed the
Bill Gates world. Bill Gates has held the top spot on the list of The World's Billionaires for 18 out of the past 23 years. Gates has several investments outside Microsoft, which in 2006 paid him a salary of $616,667 and $350,000 bonus totalling $966,667. In 1989, he founded Corbis, a digital imaging company. In 2004, he became a director of Berkshire Hathaway, the investment company headed by long-time friend Warren Buffett. In 2016, he was discussing his gaming habits when he revealed that he was color-blind. In a BBC interview, Gates claimed "I've paid more tax than any individual ever, and