Keynote address: Annual Conference in Meta-Ethics, Madison Wisconsin, 2008
Inaugural Annual Lecture of the Irish Jurisprudence Society, Dublin 2009
Hart Memorial Lecture, Oxford, 2009
Keynote address: International Conference: The rule of law, Beijing 2009 (organised by the Institute of Philosophy, Chinese Academy of Social Sciences & the Philosophy Summer School in China).
Lead Keynote address: 24th IVR International Congress, Beijing, 2009
1st Law & Cosmopolitan Values lecture, Antwerp 2011
Kellogg Lecture in Jurisprudence, Library of Congress, Washington 2011
LEAP Lecture, University of Girona, 2012
Annual Lecture,Society for Applied Philosophy, Oxford 2012
Quain Lectures, UCL, London April 2013
Keynote Lecture, NUSTP
conference at Northwestern 2015.
Mala Kamm Lecture, given at NYU philosophy dept. October 2015.
Julius Stone Address, University of Sydney, October 2016
Fellow, NuffieldCollege, Oxford.
Fall 1974: Visiting Professor, Dept. of
Philosophy, The RockefellerUniversity, New York.
August 1977: Visiting Professor, AustralianNationalUniversity, Canberra, Australia.
Spring 1984: Visiting Professor, Jurisprudence and Social Policy
Program, University of California at Berkeley.
September 1987: Visiting Professor, Faculty of Law, University of Toronto,
Fall 1988: Visiting Professor, jointly at YaleLawSchool and at
the Dept.of Political Science at YaleUniversity.
Spring 1989: Visiting Professor, LawCenter, University of Southern California, Los Angeles.
Spring Quarter 1989, Fellow (for part of the period in residence),
Humanities Research Institute, University of California at Irvine.
Fall 1991: Visiting Professor, School of Law, Columbia University, N.Y.
March 1993: Visiting Mellon Fellow, Dept. of Philosophy, PrincetonUniversity.
Fall 1993: Visiting Professor, School of Law, Columbia University, N.Y.
Oct. 1994: NelsonVisiting Professor, Michigan Law School, Ann Arbor.
1995-2002: Visiting Professor, LawSchool, ColumbiaUniversity
2007: British-Hispanic Professor, Complutensa University, Madrid
2009, March: Three weeks at USC, law school.
2009-2011 Visiting Professor, King's College London, School of Law.
A number of short academic visits to Abu Dhabi, Argentina, Australia, Austria, Belgium, Bulgaria, Canada, China,
The Czech Republic, Finland, France, Germany, Holland, Hungary,
Ireland, Israel, Italy, Japan, Mexico, Norway, Poland, Portugal, Singapore, Slovakia, Spain,Sweden,
Switzerland and the USA.
EDITORIAL AND CONSULTATIVE COMMITMENTS
1982- Member, editorial board, Law
1984-92: Editor (with A.M. Honoré) of Clarendon Law Series, OUP.
1985-99: Member, editorial board, Current Legal Theory
1988- Member, editorial board, RatioJuris
1989- Member, editorial board, book series La Pensee Juridique eds by M. Troper &
J. Lenoble; published by LGDJ (Paris) and Story-Scientia (Brussels)
1989-94: Member, Academic Council, Centre for Institutional Studies, Buenos Aires, Argentina.
1990- Member, editorial board, The
Philosophy of History and Culture, a book series ed. M. Krausz,
publisher E.J. Brill.
1990- Member, editorial board, the American Journal of Jurisprudence.