Style in Architecture: A Defense of Formalism, Philosophy + Architecture Conference, Boston University, April, 2011.
Rescuing Abstract Architecture - Super Formalism Saves the Day, Philosophy + Architecture Conference, Boston University, April, 2011.
Sounds and Silence as Aesthetic Properties, Columbia University GSAPP Seminar on Stillspotting, February, 2011.
Philosophical Foundations of a Science of Architecture, 1886-1954, Eighth History of Philosophy of Science Conference, Central European University, Budapest, June, 2010.
What A Science of Architecture Might Be, American Society of Aesthetics, Denver, Colorado, October, 2009
Types and Typologies in Architecture, University of South Florida, Tampa, Florida, September, 2006.
Copyright and Architectural Ideas, American University of Beirut, October, 2003.
Ethics and the Transforming Architectural Profession: the Code, the Law, and the Moral Domain, Board Meeting, American Institute of Architects, December, 2002.
What Architects Need to Know About Ethics, Illinois Institute of Technology, November, 2002.
Rights to Copying Ideas: A Problem for Architectural Ethics, Meeting of the Association for Practical and Professional Ethics, Cincinnati, March, 2002.
What Sorts of Things are Architectural Types?, PhD Seminars in Architecture and Philosophy, Parsons School of Design, New York, October, 2000.