John Haldane is a Professor in the Department of Moral Philosophy and the Director of the Centre for Ethics, Philosophy, and Public Affairs at the University of Saint Andrews, Scotland.

Robert C. Koons is Professor of Philosophy and Director of the Program in Western Civilization and American Institutions at the University of Texas in Austin.

Daniel N. Robinson a Professor and Faculty Fellow on the Philosophy Faculty of Oxford University and Visiting Senior Member of Linacre College. He is also Distinguished Professor, Emeritus, Georgetown University.

James Stoner, Jr. is Professor at Louisiana State University in the department of Political Science.

Christopher Tollefsen is Associate Professor in the Department of Philosophy at the University of South Carolina.