Nelson Mandela

Nelson Mandela, seated, is reunited with The Elders, from left, Graca Machel, Fernando Henrique Cardoso, Desmond Tutu, Jimmy Carter, Mary Robinson, Kofi Annan, Gro Brundtland, Martti Ahtisaari, Ela Bhatt and Lakhdar Brahimi on May 29, 2010 in Johannesburg, South Africa. Mandela, who founded The Elders in 2007 to be "a fiercely independent and robust force for good," met members of the group at a private lunch.

Credit: Jeff Moore via Getty Images