He was a Royal New Zealand Air Force (RNZAF) pilot in the Pacific in World War II. After demobilizing in 1946 he went to Teachers' College and University, where he studied both anthropology and politics. He had a passion for human rights and was strongly opposed to racism, in particular the apartheid system in South Africa and Rhodesia. This lead him to sign up with the Princes Street branch of the Labour Party in 1949 contrasting with the strong National Party affiliation in his father's family.