(from L) Iranian Shirin Ebadi, the 2003 Nobel Peace Prize Laureate, Tibet's spiritual leader the Dalai Lama, former Polish President and 1983 Nobel Peace laureate Lech Walesa and Former South African President Frederik de Klerk, 1993 Nobel Peace Prize Laureate pose for a picture under historic logo of "Solidarity" trade union at the end of the World Summit of Nobel Peace Laureates on October 23, 2013 in Warsaw. AFP PHOTO/JANEK SKARZYNSKI