Berlin, Germany - January 26: Bill Gates, founder of Bill and Melinda Gates foundation, on January 26, 2015 in Berlin, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)
Berlin, Germany - January 26: Bill Gates, founder of Bill and Melinda Gates foundation, on January 26, 2015 in Berlin, Germany. (Photo by Michael Gottschalk/Photothek via Getty Images)