Bill Gates with the Office of the Secretary of the State of New Mexico. Gates never returned to Harvard to complete his studies. Microsoft's Altair BASIC was popular with computer hobbyists, but Gates discovered that a pre-market copy had leaked into the community and was being widely copied and distributed. In February 1976, Gates wrote an Open Letter to Hobbyists in the MITS newsletter in which he asserted that more than 90 percent of the users of Microsoft Altair BASIC had not paid Microsoft for it and by doing so the Altair "hobby market" was in danger of eliminating the incentive for
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