"Legal Practice and the Responsibility of Individuals," Julius Stone Address, Sydney Law School, April, 2025
The Herbert Morris Lecture in Law and Philosophy, University of California, Los Angeles, School of Law: "Illusory Moral Rules: How Law Misleads Us about Morality," February, 2017.
"Private Law and Public Illusion," Frankfurt Lectures, Normative Orders Cluster of Excellence, Goethe University, Frankfurt. Lecture One: "Artificial Morality." Lecture Two: "The Persistence of an Illusion." May, 2016
"Law and Social Illusion," Annual Lecture in Law and Society, Oxford University, June 2013
“Responsibility for International Aid: Individual, Collective, and State,” Ethics Program Lecture Series, Agnes Scott College, April 2012
“What is Law? And Why Does it Matter?” Kadish Lecture, University of California, Berkeley, School of Law, February 2010.
“When Legal Disagreement Runs Out,” Leon Green '15 Lecture in Jurisprudence, University of Texas, Austin, February, 2009.