The relationship between philosophy and Jewish thought has often been a matter of lively discussion. But despite its long tradition and the variety of positions that have been taken in it, the debate is far from being closed and keeps meeting new challenges. So far, research on this topic has mostly been based on historically diachronic references, analogies, or contacts among philosophers and Jewish thinkers. The contributors to this volume, however, propose another way to advance the debate: Rather than adopting a historical approach, they consider the intersections of philosophy and Jewish thought from a theoretical perspective.