BERLIN, GERMANY – NOVEMBER 14: Bill Gates, co-founder of the Bill & Melinda Gates Foundation and former head of Microsoft, visits the German federal chancellery on November 14, 2013 in Berlin, Germany. Gates was expected to discuss how Germany’s government could work with his foundation to meet many of the Millennium Development Goals by 2015, when the country assumes presidency of the G8. (Photo by Michael Gottschalk/Photothek via Getty Images)