Paul J. Diduch is an Instructor in the Herbst Program of Humanities for Engineers at the University of Colorado Boulder, USA. He has published articles and reviews on Plato and Thucydides and is currently working on Socrates' critique of pre-Socratic science and the problems of virtue and knowledge in Plato's thought. Michael P. Harding is an Associate Professor of Philosophy and Political Science at Montgomery College, USA. He earned his doctorate from the Institute of Philosophic Studies at the University of Dallas, USA.