B.S. MIT, 1966
PhD, Columbia University (Philosophy), 1972

Assistant Professor, Philosophy, Carnegie Mellon University, 1973–1979

Associate Professor, 1979–1989

Professor, 1989–2000

Lecturer in the Council of the Humanities and Class of 1932 Fellow in Philosophy, Princeton University, Spring Semester, 1998

Getty Scholar, 1999–2000

Champney Family Professor, Case Western Reserve University/Cleveland Institute of Art, 2001–2011

Clark Fellow, Fall 2004

Senior Fellow, National Humanities Center, 2006–2007

Fulbright-Luce Lectureship, Spring 2009, Academy of Art and Design, Tsinghua University and Central Academy of Fine Arts, Beijing

Adjunct Professor of History of Art and Architecture, University of Pittsburgh, 1 April 2009–Present

Other positions

Participant, “The Concept of Style,” NEH summer Institute in Aesthetics, University of Colorado, June 1977

Summer Stipend, National Endowment for the Humanities, late 1980s, 1995

Visiting Lecturer, American Society for Aesthetics, l991 Summer Institute on Philosophy and the Histories of the Arts, San Francisco, July 22–6, l991

Visiting Scholar, The American Academy in Rome, 8–22 December, l991

Visitor, Department of Art History, University of Auckland, New Zealand, July 22–August 8, 1996, 6 lectures

Visiting lecturer, 4 Swedish Universities, 7 lectures, March 1998

Visiting lecturer, 4 lectures, June 1998, National Academy of Art, Hangzhou, China

Member Graduate Faculty, Art Criticism and Writing, School for Visual Art, 2004–6

Chelsea Art Gallery Guide, Trustees, National Humanities Center, May 4, 2007