Freedom from fear' could be said to sum up the whole philosophy of human rights.
Dag Hjalmar Agne Carl Hammarskjöld was a Swedish diplomat, economist, and author who served as the second Secretary-General of the United Nations from April 1953 until his death in a plane crash in September 1961. At the age of 47 years upon his appointment, Hammarskjöld was the youngest to have held the post. Additionally, he is one of only four people to be awarded a posthumous Nobel Prize and was the only United Nations Secretary-General to die while in office. He was killed in a DC-6 airplane crash en route to cease-fire negotiations during the Congo Crisis.