In April 1911, Prague artists, writers, and intellectuals often gathered nightly at the Café Louvre, an intellectual center where music was played and high-level discussions were held. Many of the attendees were German-speaking Jews, such as Franz Kafka and his faithful friend Max Brod, Hugo Bergmann, Oskar Kraus, Franz Werfel, the mathematician Georg Pick, and a new arrival to the city, thirty-two-year-old Albert Einstein. Is it possible that Kafka and Einstein met and exchanged ideas? Did they influence each other from a philosophical or deep-thinking perspective? In neither Kafka's nor Einstein’s correspondence there is not even the slightest mention of each other. But Einstein and Kafka, two icons of our modern era, serve as the starting point for this book on the enormous contributions in the fields of the empirical sciences, humanities, letters, and arts by individuals of Jewish origin in modernity. In this book, the reader will encounter numerous names in the pages that all