Dr. Hardy Bouillon, Extracurricular Professor for Philosophy at the University of Trier, served as Stand-in-Professor for Practical Philosophy at the University of Duisburg-Essen from 2007-2009. His guest professorships have taken him to Prague, Salzburg, Vienna and Zagreb. Professor Hardy Bouillon is a member of the Mont Pèlerin Society and author and/or editor of numerous books and more than 100 odd articles which have been published in Chinese, English, German, Italian, Romanian, Turkish, and Vietnamese. His books include 4 monographs and 13 edited volumes. Among these are "Government: Servant or Master?" (1993), "Values and the Social Order", 2 vol., (1995), "Libertarians and Liberalism"(1997), and "Ordered Anarchy" (2007).