In this volume, Alessandro Grazi offers the first intellectual biography of the Italian Jewish writer and politician David Levi (1816-1898). In this intriguing journey through the mysterious rites of Freemasonry and the bizarre worldviews of Saint-Simonianism, you can discover Levi’s innovative interpretation of Judaism and its role in modernity. As a champion of dialogue with Catholic intellectuals, Levi’s importance transcends the Jewish world. The second part of the book presents an unpublished document, Levi’s comedy “Il Mistero delle Tre Melarancie”, a phantasmagorical adventure in search of his Jewish identity, with an English translation of its most relevant excerpt.