Henri Bergson, the French philosopher who defined individual creativity and transformed twentieth-century thought. At the dawn of the twentieth century, Henri Bergson became the most famous philosopher on earth. Where prior thinkers sketched out a predictable universe, he asserted the transformative power of consciousness and creativity. An international celebrity, he made headlines around the world debating luminaries like Bertrand Russell and Albert Einstein about free will and time. The vision of creative evolution and freedom he presented was so disruptive that the New York Times branded him "the most dangerous man in the world." In the first English-language biography of Bergson, Emily Herring traces how his celebration of the time-bending uniqueness of individual experience struck a chord with those shaken by modern technological and social change. Bergson captivated a society in flux like no other. Long after he faded from public view, his insights into memory, time, joy and creativity continue to shape our perceptions to this day. Herald of a Restless World is an electrifying portrait of a singular intellect.