criticised for advocating metaphysics by young philosopher Jacques Derrida in a March 1963 lecture at the University of Paris. Responding with a vicious retort, Foucault criticised Derrida's interpretation of René Descartes. The two remained bitter rivals until reconciling in 1981. In the English-speaking world, the work became a significant influence on the anti-psychiatry movement during the 1960s; Foucault took a mixed approach to this, associating with a number of anti-psychiatrists but arguing that most of them misunderstood his work. Foucault's secondary thesis (), written in Hamburg between 1959 and 1960, was a translation and commentary on German philosopher Immanuel Kant's Anthropology from a Pragmatic Point of View (1798); the thesis was titled Introduction à l'Anthropologie. Largely consisting of Foucault's discussion of textual dating—an "archaeology of the Kantian text"—he rounded off the thesis with an evocation of Nietzsche, his biggest philosophical influence. This work's rapporteur was Foucault's old tutor and then-director of the ENS, Hyppolite, who was well acquainted with German philosophy. After both theses were championed and reviewed, he underwent his public defense of his doctoral thesis (soutenance de thèse) on 20 May 1961. The academics responsible for reviewing his work were concerned about the unconventional nature of his major thesis; reviewer Henri Gouhier noted that it was not a conventional work of history, making sweeping generalisations without sufficient particular argument, and that Foucault clearly "thinks in allegories". They all agreed however that the overall project was of merit, awarding Foucault his doctorate "despite reservations". University of Clermont-Ferrand, The Birth of the Clinic, and The Order of Things: 1960–1966 In October 1960, Foucault took a tenured post in philosophy at the University of Clermont-Ferrand, commuting to the city every week from Paris, where he lived in a high-rise block on the rue du Dr Finlay. Responsible for teaching psychology, which was subsumed within the philosophy department, he was considered a "fascinating" but "rather traditional" teacher at Clermont. The department was run by Jules Vuillemin, who soon developed a friendship with Foucault. Foucault then took Vuillemin's job when the latter was elected to the Collège de France in 1962. In this position, Foucault took a dislike to another staff member whom he considered stupid: Roger Garaudy, a senior figure in the Communist Party. Foucault made life at the university difficult for Garaudy, leading the latter to transfer to Poitiers. Foucault also caused controversy by securing a university job for his lover,