In this book, Bergson discusses the development of life, and presents existence as a living existence. Therefore, man is the focus of studying the nature of this existence, and the purpose of analyzing human existence is the components of existence at all.

أَنْرِي بِرْكْسُون فيلسوف فرنسي. حصل على جائزة نوبل للآداب عام1927.