@BillGates: When @melindagates and I started our foundation, we knew our investments would be high-risk, high-reward. Melinda explains why the returns have been greater than we ever could have imagined. https://t.co/XcXqPukw72

http://twitter.com/BillGates

When @melindagates and I started our foundation, we knew our investments would be high-risk, high-reward. Melinda explains why the returns have been greater than we ever could have imagined. https://t.co/XcXqPukw72

— Bill Gates (@BillGates) February 1, 2019