Prof Dr Christoph Horn (* 1964) studied philosophy, Greek and theology at the Universities of Freiburg i. Br., Munich and Paris IV (Sorbonne). After receiving his PhD from the University of Munich in 1993, he habilitated and was authorised to teach philosophy at the University of Tübingen in 1999. Horn has been a professor at the University of Bonn since 2001, specialising in Ancient and Practical Philosophy. Since then, he has taught not only in Bonn, but also at the University of Lausanne (Switzerland), the Universities of Erlangen-Nuremberg and Vienna (Austria), the PUCRS Porto Alegre (Brazil) and the New School for Social Research (New York/USA).