Art and aesthetics philosopher who spent his nearly forty-year university teaching career at Swarthmore College and Temple University. His publications include Aesthetics: A Short History and Practical Logic.
He obtained both his Bachelor's degree and his Ph.D. from Yale University.
He was elected a Fellow of the American Academy of Arts and Sciences in 1976.
He and his wife Elizabeth were hired to edit the Foundations of Philosophy, a book published by Prentice-Hall.
He and feminist philosopher Judith Butler both attended Yale University.