Once the most famous person in the world, French philosopher Henri Bergson has now been largely forgotten. As the first biography of Bergson in English, Herald of a Restless World brings his fascinating story back into the public eye. This book is about what was profound, interesting, unusual, extraordinary, and compelling about Bergson's life and his ideas. It consists of three intertwined and inseparable portraits. A portrait of a man, with hopes, dreams, and contradictions. A portrait of his philosophy that in many different ways, changed the world. And a portrait of the world in which this man and these ideas evolved, became famous around the world, and eventually disappeared from memory.