@BillGates: These heroes represent the best of who we can be. Their efforts to solve the world’s challenges demonstrate our values as a society and they serve as powerful examples of how to make a positive difference in the world. https://t.co/u9n0WvN0EP

http://twitter.com/BillGates

These heroes represent the best of who we can be. Their efforts to solve the world’s challenges demonstrate our values as a society and they serve as powerful examples of how to make a positive difference in the world. https://t.co/u9n0WvN0EP

— Bill Gates (@BillGates) September 10, 2020