- Quondam Fellow, All Souls College (from 1992)
- Prize Fellow, All Souls College (from 1985 to 1992)
- Undergraduate and Postgraduate, Trinity College, Oxford (from 1978 to 1985)
- Philosophy of Religion
- Cosmology
- History of early modern Philosophy
- ‘Mere addition and the best of all possible worlds’, Religious Studies
- ‘Cosmological fecundity’, Inquiry
- ‘Incommensurability and the best of all possible worlds’, The Monist
- ‘West or best? Sufficient reason in the Leibniz-Clarke correspondence’, Studia Leibnitiana
- ‘Satisfied pigs and dissatisfied philosophers: Schlesinger on the problem of evil’, Philosophical Investigations
- Problems of Evil (Fall 2008)
- The Best of All Possible Worlds (Fall 2007)
- The Design Argument (Spring 2006)
- The Problem of Evil (Spring 2005)
- Nothing (Spring 2004)
- Chief Strategist and Political Analyst, UFG Russia Select Fund (now owned by Deutsche Bank) (from 2000 to 2006)
- Diplomat, Political Section, British Embassy, Moscow, Russia (from 1995 to 1999)
- Quondam Fellow, All Souls College (from 1991)
- Foreign Service, Foreign & Commonwealth Office (from 1990 to 1995)
- Prize Fellow, All Souls College (from 1984 to 1991)
- Undergraduate, New College (from 1981 to 1984)
- Russian and other former Soviet financial markets
- (with Oppenheimer, eds), Russia's Post-Communist Economy (OUP, 2001)
- Professor of Law and Philosophy, University of Oxford, and Senior Research Fellow, All Souls College (from 2016 to 2019)
- Professor of Jurisprudence, University of Oxford (from 2000 to 2016)
- Reader in Legal Philosophy, King’s College London (from 1996 to 2000)
- Fellow and Tutor in Law, Brasenose College, Oxford (from 1991 to 1996)
- Prize Fellow, All Souls College, Oxford (from 1986 to 1991)
- The philosophy of private law, of criminal law, of public law, and of law in general, as well as nearby areas of moral philosophy, political philosophy, philosophical psychology, and the philosophy of action.
- Law as a Leap of Faith: Essays on Law in General (Oxford: Oxford University Press 2012)
- Offences and Defences: Selected Essays in the Philosophy of Criminal Law (Oxford: Oxford University Press 2007)
- Publications (External Link)
- Emeritus Fellow, All Souls College (from 1983 to 2015)
- Professor of the Archaeology of the Roman Empire and Fellow, All Souls College (from 1966 to 1983)
- Reader (1955-63) then Professor of the Archaeology of the Roman Provinces, Institute of Archaeology, University of London (from 1955 to 1966)
- Lecturer in Archaeology, Manchester University (from 1954 to 1955)
- Master, Lancing College (from 1945 to 1954)
- National Fire Service (from 1940 to 1945)
- Master, Epsom College (from 1938 to 1940)
- Undergraduate, Magdalene College, Cambridge (to 1938)
- (with J. J. Wilkes) Strageath: excavations within the Roman fort (Society for the Promotion of Roman Studies, 1989)
- (with F. A. Lepper) Trajan’s Column (Alan Sutton, 1988)
- Verulamium Excavations, vol. I (1972), vol. II (Society of Antiquaries of London, 1983), vol. III (Oxford University Committee for Archaeology, 1984)
- Excavations at Canterbury, vol. VII (Kent Archaeological Society, 1982)
- (with J. K. St Joseph) Roman Britain from the Air (CUP, 1983)
- Excavations on the Roman and Medieval Defences of Canterbury (Kent Archaeological Society, 1982)
- Britannia, a history of Roman Britain (Routledge & Kegan Paul, 1967; 4th edn, The Folio Society, 1999)
- (ed.) Problems of the Iron Age in Southern Britain (University of London, Institute of Archaeology, 1961)
- Quondam Fellow, All Souls College (from 1999)
- Post-Doctoral Research Fellow, All Souls College (from 1994 to 1999)
- Quondam Fellow, All Souls College (from 1999)
- Fifty Pound Fellow, All Souls College (from 1996 to 1999)
- Tutor, Diploma Course, also part-time Tutor (weekly classes), Oxford University Continuing Education, Oxford (from 1988 to 2009)
- Fifty-Pound Fellow, All Souls College (from 1974 to 1988)
- Assistant Master, History and History of Art, Eton College (from 1973 to 1997)
- Prize Fellow, All Souls College (from 1966 to 1973)
- Undergraduate, Christ Church, Oxford (from 1963 to 1966)
- History of Architecture from the Romanesque period to the present day, especially the period 1400-1800
- St Thomas Becket and France (1991)
- Theology (1970)
- 'St Thomas Becket and the Church', Chronicle of the Friends of Canterbury Cathedral (1970)
- Chichele Lecturer (1999)
- Governor, Berkhamsted School (College nominee, latterly Vice-Chairman)
- Quondam Fellow, All Souls College (from 2003)
- Fifty-Pound Fellow, All Souls College (from 1994 to 1999)
- Prize Fellow, All Souls College (from 1988 to 1993)
- Two-Year Fellow, All Souls College (2015)
- Professor of Modern Italian History, University of Reading (from 2002 to 2015)
- Director, Centre for Italian History (from 1987 to 2015)
- Lecturer, then Reader, University of Reading (from 1987 to 2002)
- Post-Doctoral Research, then Fifty-Pound, Fellow, All Souls College (from 1985 to 1997)
- Postgraduate, Merton College, Wolfson College, Oxford (from 1981 to 1985)
- Undergraduate, Merton College, Oxford (from 1976 to 1979)
- Nineteenth- and Twentieth-century Italian history
- Fascist Voices. An Intimate History of Mussolini's Italy (Bodley Head, 2012)
- The Force of Destiny: A History of Italy since 1796 (Allen Lane, 2007)
- Francesco Crispi. From Nation to Nationalism (OUP, 2002)
- A Concise History of Italy (CUP, 1994)
- Fascism and the mafia (Yale University Press, 1989)
- (co-edited with M.I. Finley and D. Mack Smith (eds)), A History of Sicily (Chatto and Windus, 1986)
- Wallis Professor of Mathematics, St Anne’s College, Oxford (from 1985 to 1999)
- Quondam Fellow, All Souls College (from 1985)
- Post-Doctoral Research Fellowship, All Souls College (from 1983 to 1985)
- Postgraduate, Worcester College, Oxford (from 1980 to 1983)
- Undergraduate, Pembroke College, Cambridge (from 1976 to 1979)
- Differential & algebraic geometry; global analysis
- Editor, The Spectator; also Contributing Editor and Political Columnist, GQ Magazine (from 2006 to 2009)
- Deputy Editor, Comment (1996-8); Deputy Editor, Sunday Telegraph (from 1996 to 2006)
- Quondam Fellow, All Souls College (from 1996)
- The Times (Assistant Editor, 1994–5) (from 1991 to 1995)
- Prize Fellow, All Souls College (from 1989 to 1996)
- Undergraduate, Magdalen College, Oxford (from 1986 to 1989)
- Nothing to Fear (Hodder & Stoughton, 2008)
- Confessions of a Hawkish Hack (2006)
- Tabatha’s Code (Alma Books, 2006)
- Going East (Nan A. Talese/Doubleday, 2003)
- (with C.P. Thiede), The Quest for the True Cross (Palgrave Macmillan, 2002)
- (with C. P. Thiede), The Jesus Papyrus (Orion Publishing Group Ltd, 1997)
- The Ties That Bind Us: A Study of Civic Society in English Town (Social Market Foundation, 1996)
- Member, Puttnam Commission on Parliament in the Public Eye (from 2004 to 2005)
- Member, Policy Advisory Board, Social Market Foundation (from 2002 to 2006)
- Member, Millennium Commission (from 2001 to 2006)
- Member, British Executive, IPI (from 1998 to 2006)
- Member, Board of Directors, Centre for Policy Studies (from 1998 to 2006)
- Member, Advisory Council, Demos (from 1998 to 2006)
- Philip Geddes Memorial Lecture, St Edmund hall, Oxford (2006)
- Editor of the Year, Current Affairs Magazines, BSME (2007).
- Political Studies Associate Awards (2006).
- British Press Awards (2004).
- Charles Douglas-Home Memorial Trust Prize (1995).
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