Born 1935, studied at the Hebrew University, 1964 Ph.D; since 1982 Gershom Scholem Professor for Kabbala; 1993-2002 Guest Professor for Jewish Studies at the Freie Universitat Berlin, since 2002 Professor emeritus. Geboren 1943; 1968 Promotion; 1973 Habilitation; 1983-2008 Professor fur Judaistik an der Freien Universitat Berlin; 1998-2013 Ronald O. Perelman Professor of Jewish Studies und Professor of Religion an der Princeton University; 2014-2019 Direktor des Judischen Museums Berlin.