Sidney’s Poetics: Imitating Creation. Washington: Catholic University Press, 2005. Reprint, 2011.
“Philip Sidney.” In Encyclopedia of Renaissance Philosophy, edited by Marco Sgarbi. Springer, forthcoming.
“Why Read Shakespeare?: A Real Question and the Search for a Good Answer.” In Literature. New York: Houghton Mifflin Harcourt, forthcoming.
Foreword to Touches of Sweet Harmony: Pythagorean Cosmology and Renaissance Poetics, by S. K. Heninger, Jr. New York: Angelico Press, 2013.
“The Consolation of Art in the Tempest and the Aeneid.” In Reading the Renaissance: Ideas and Idioms from Shakespeare to Milton, edited by Marc Berley, 57-77. Pittsburgh: Duquesne University Press, 2003.
“Shakespeare’s Ethics.” Wesleyan University, Middletown, CT, November 2012.
“Hamlet: Shakespeare’s Mousetrap?” Christendom College, Front Royal, VA, February, 2011.
“Looking at Nothing in King Lear.” American Psychoanalytic Association, New York, NY, June 2010.
“The Liberal Arts: From Greece to Green Bay.” Green Bay, WI, June 2010.
“Shakespeare on Love: Four Lectures” Smithsonian Institute, Washington, D.C., October-November 2009.
“Judgment and Perspective in Julius Caesar and Antony and Cleopatra.” Shakespeare Theatre, Washington, D.C., April 2008.
“Critical History of Hamlet.” Shakespeare Theatre, Washington, D.C., June 2007.
“Shakespeare and Verdi.” Smithsonian Institute, Washington, D.C., June 2005.
“Seeing Man: Holbein’s Ambassadors.” Catholic University of America, Washington, D.C., April 2005.
“Sidney’s Platonism.” Renaissance Society of America, New York, April 2004.
“Shakespeare on Human Nature: Six Lectures.” Smithsonian Institute, Washington, D.C., July – August 2003.
“Corruption and Degeneration in Troilus and Cressida and All’s Well.” Shakespeare Association of America, Victoria, Canada, April 2003.
“Shakespeare on Human Nature.” Smithsonian Institute, Washington, D.C., May 2001.
“The Liberal Arts: A Classical Ideal and its Historical Development.” Thomas More Society, Washington, D.C., May 2001.
“Shakespeare, Montaigne, and the Human Condition.” International Shakespeare Association, Valencia, Spain, April 2001.