Second World War he studied Japanese at the School of Oriental and African Studies, University of London, and was a Royal Air Force intelligence officer. After a period with the Inter-Services Topographical Department in Oxford, he was posted to Bletchley Park in June 1944. In the post-war era, Flew achieved a first class degree in Literae Humaniores at St John's College, Oxford (1947). He also won the John Locke Scholarship in Mental Philosophy in the following year. Flew was a graduate student of Gilbert Ryle, prominent in ordinary language philosophy. Both Flew and Ryle were among many Oxford philosophers fiercely criticised in Ernest Gellner's book Words and Things (1959). A 1954 debate with Michael Dummett over backward causation was an early highlight in Flew's career. For a year, 1949–1950, Flew was a lecturer in philosophy at Christ Church, Oxford. From 1950 to 1954 he was a lecturer at the University of Aberdeen, and from 1954 to 1971 he was a professor of philosophy at the University of Keele. He held a professorship at the University of Calgary, 1972–1973. Between 1973 and 1983 he was professor of philosophy at the University of Reading. At this time, he developed one of his most famous arguments, the No true Scotsman fallacy in his 1975 book, Thinking About Thinking. Upon his retirement, Flew took up a half-time post for a few years at York University in Toronto, Canada. Politically, Flew was a right-wing libertarian-leaning conservative and wrote articles for The Journal of Libertarian Studies. His name appears on letterheads into 1992 as a vice-president of the Conservative Monday Club, and he held the same position in the Western Goals Institute. He was one of the signatories to a letter in The Times along with Lord Sudeley, Sir Alfred Sherman, and Dr. Harvey Ward, on behalf of the institute, "applauding Alfredo Cristiani's statesmanship" and calling for his government's success in defeating the Cuban and Nicaraguan-backed communist FMLN in El Salvador. In 1999 he wrote the foreword to a publication of the British far-right think tank Bloomsbury Forum, Standard Bearers: British Roots of the New Right. In political philosophy, the main interest of Antony Flew was in opposing the concept of social justice, i.e. the idea that income and wealth should be redistributed among the population in accordance with a principle of economic equality. Flew argued that social justice led to state tyranny and ran directly