This superb anthology of texts by and about Hermann Cohen shows how confronting his work is indispensable to understanding still-vital controversies about the heritage of Enlightenment philosophy, the compatibility of Judaism and modernity and the challenge it faced with the rise of existentialism and the ‘new thinking.’ This landmark collection, brilliantly introduced and curated by Samuel Moyn and Robert Schine, is more than a sweeping reappraisal of a thinker who both revived Kant’s project and modernized Jewish philosophy. It is a timely invitation—even a compelling summons—to pursue a path all but forgotten and yet of paramount importance for our own times.