Born 1949; 1976 PhD; 1987 Habilitation; 1989-2002 Professor of Philosophy at the University of Tübingen; since 2002 Professor for Philosophy at the University of Freiburg im Breisgau; since 2017 emeritus.
Born 1955; 1983 PhD; 1988 Habilitation; 1992-97 Professor of Classical Philology at the Heinrich-Heine-University in Düsseldorf; since 1997 Professor for Classical Philology at the University of Freiburg im Breisgau.