Short CV
| 1980 | Doctoral degree at the University/GH Wuppertal |
| 1984-1990 | Postgraduate assistant of the Department of Philosophy at the University of Bielefeld |
| 1990 | Postdoctoral degree at the University/GH Wuppertal |
| 1991-1995 | University lecturer (C2) at the Faculty 2 of the BU Wuppertal; member of the research training group "Hermeneutik und Phänomenologie" ("Hermeneutics and Phenomenology") at the universities of Wuppertal and Bochum |
| WS 93/94 and WS 94/95 |
Substitution of a C-4 professorship "Philosophie und ihre Didaktik" ("Philosophy and its didactics") at the Faculty of Educational Studies at the Christian Alberts University of Kiel |
| 1995 | Accepted the Chair of Philosophy (C-4 professorship) at the University of Kiel |
| 1995-1998 | C-3 professorship in Philosophy at the University of Duisburg |
| since 1.4.1998 | C-4 professorship in Philosophy at the University of Siegen |