"Aristotle's Employment of Platonic Forms in Zeta 6," The Modern Schoolman, LXXVII, Nov., 1999, pp. 79-94.
“God, The Good Life, and Higher Education” Humanities Dept. Colloquium, Lanzhou University, China. April, 2006.
“Religious Experience, Conceptual Contribution, and the Problem of Diversity” Southern California Philosophy Conference, Oct. 2003.
“Conceptual Contribution and the Evidential Force of Religious Experience” American Philosophical Association, Eastern Division Meeting, Philadelphia, Dec., 2003. Society of Christian Philosophers, Far West Regional Meeting, Phoenix, AZ. Feb. 2003.
“The Dimensions and Normative Authority of Religious Experience: A Response to Audi” Working Conference on Religious Experience, Biola University Feb. 2, 2002.
“Lumps and Statues: A Strange Coincidence: A Response to Mark Moyer” American Philosophical Association, Western Division Meeting, San Francisco, March 30-April 4, 2001.
“The Parable of the Landowner and the Problem of Moral Luck” Society of Christian Philosophers, Pacific Regional Meeting, La Mirada, CA, Jan. 30-31, 1998. (2)
“An Internalist Rejoinder to Skepticism” Paideia: Twentieth World Congress of Philosophy, Boston, August 10-16, 1998 American Philosophical Association, Central Division Meeting, Chicago, May 6-9, 1998.