During the split second of time represented by the last few years, humanity has been bereft of five of its great leaders who were still in the midst of carrying awesome responsibilities including the promotion of peace—Jawaharlal Nehru, Pope John XXIII, John F. Kennedy, Dag Hammarskjöld, and Adlai E. Stevenson. How great the void that the passing of each of them produced! How strong our conviction that a world gripped with grave problems—old and new—needed their special gifts, their clear minds, their strong hands, their sense of devotion for a longer span of time! Yet the destiny that shapes our ends is in this sense beyond our control.