WEF chairman Klaus Schwab

WEF chairman Klaus Schwab

Jason Alden/Bloomberg

Klaus Schwab, chairman of the World Economic Forum, speaks during a Bloomberg Television interview in Davos on Jan. 21, 2013. A good leader has heart, soul, vision and “good nerves,” Schwab said, adding that former South African President Nelson Mandela was the most impressive of all the captains of politics and industry he has met over the years.