Bachelor, Hongkong University, 1917. Master of Arts, Columbia, 1919. Doctor of Philosophy, Columbia, 1925.
Professor political science in charge international law and diplomacy, Yenching U., Peiping, 1923-1937;
dean college public affairs, Yenching U., Peiping, 1929-1932;
technical adviser, Chinese delegations to League of Nations Assembly and Council, 1932-1933;
member of national defense planning commission, NAt. Government, 1933-1936;
member of national resources committee, NAt. Government, 1936-1938;
adviser to, Ministry of Foreign Affairs, 1936-1938, 40-49;
technical member, Chinese delegate to United Nations, 1945-1947;
minister plenipotentiary, Chinese delegate to United Nations, 1947-1952;
ambassador, Chinese delegate to United Nations, 1952-1956;
ambassador to Peru and Bolivia, from 1956.
Alternative representative United Nations Security Council, General Assembly, Interim Committee of General assembly, 1947-1956, Peace Observatin Committee, 1950-1956. Representative commission on codification of international law, 1947, commission on definition of aggression, 1953. Representative United Nations General Assembly, 1958, 60.
Member United Nations International Law Commission, from 1948, Permanent Court of Arbitration, from 1958.
Married Grace Wenchuang Liu, July 7, 1921. Childern: Yuanyo, Fucheng, Chichang.