Career
He is an Emeritus Professor of Philosophy at the Ludwig Maximilian University of Munich. His many books include Proklos: Grundzuge seiner Metaphysik, Denken des Einen: Studien zur neuplatonischen Philosophie und ihrer Wirkungsgeschichte, Eriugena: Grundzuge seines Denkens, Platonismus im Christentum, and Platonismus und Idealismus. He was among the original Editorial Advisors of the scholarly journal Dionysius, in which English-language examples of his writings may be foundation
