Peter T. Geach, David Wiggins, Peter van Inwagen, David Lewis, Ernest Sosa, Peter Unger, Michael C. Rea, Mark Heller, Allan Gibbard, Frederick C. Doepke, Terence Parsons, George Myro, Frances Howard-Snyder, Mark Johnston, Michael B. Burke, Hugh S. Chandler. Roderick M. Chisholm, JudithJarvis Thomson