Normandy in June 1944. Education Trudeau continued his full-time studies in law at the Université de Montréal while in the COTC from 1940 until his graduation in 1943. Following his graduation, Trudeau articled for a year and, in the fall of 1944, began his master's in political economy at Harvard University's Graduate School of Public Administration (now the John F. Kennedy School of Government). In his Memoir, he admitted that it was at Harvard's "super-informed environment", that he realized the "historic importance" of the war and that he had "missed one of the major events of the century in which [he] was living. Harvard had become a major intellectual centre, as fascism in Europe led to the great intellectual migration to the United States. Trudeau's Harvard dissertation was on the topic of communism and Christianity. At Harvard, an American and predominantly Protestant university, Trudeau who was French Catholic and was for the first time living outside the province of Quebec, felt like an outsider. As his sense of isolation deepened, in 1947, he decided to continue his work on his Harvard dissertation in Paris, France. He studied at the Institut d'Études Politiques de Paris (Sciences Po). The Harvard dissertation remained unfinished when Trudeau briefly entered a doctoral program to study under the socialist economist Harold Laski at the London School of Economics (LSE). This cemented Trudeau's belief that Keynesian economics and social sciences were essential to the creation of the "good life" in a democratic society. Over a five-week period he attended many lectures and became a follower of personalism after being influenced most notably by Emmanuel Mounier. He also was influenced by Nikolai Berdyaev, particularly his book Slavery and Freedom. Max and Monique Nemni argue that Berdyaev's book influenced Trudeau's rejection of nationalism and separatism. In the summer of 1948, Trudeau embarked on world travels to find a sense of purpose. At the age of twenty-eight, he travelled to Poland where he visited Auschwitz, then Czechoslovakia, Austria, Hungary, Yugoslavia, Bulgaria, and the Middle East, including Turkey, Jordan and southern Iraq. Although he was wealthy, Trudeau travelled with a back pack in "self-imposed hardship". He used his British passport instead of his Canadian passport in his travels through Pakistan, India, China, and Japan, often wearing local clothing to blend in. According to The Economist, when Trudeau returned to Canada in 1949 after an absence of five years, his mind was