This book is first and foremost a detailed and meticulous study of Ortega y Gasset's The Revolt of the Masses (1930). No other relevant, up-to-date books explore this thinker and his great work. Most importantly, the author demonstrates the relevance and importance of Ortega y Gasset's thought and his The Revolt of the Masses for today's world, showing, for instance, how Ortega's categories like "mass man" and "decadence," have been vindicated by today's spiritual, moral and cultural decay. This aspect of the book will perhaps be of major interest to the reading public. What Ortega argues for in his brief history of philosophy is something that he has otherwise made explicit throughout his work, mainly his conviction that strictly speaking philosophy as an activity or manner of thinking that faces naked reality, holistically, ended long ago with the ancient Greeks. All subsequent philosophical endeavors have been merely a rehashing or an academic commentary on the pre-existing philosophical canon. This latter activity he saw as pertaining to the history of philosophy, but he did not regard it as philosophy. Philosophy, as a vital and life-forging way of life, he argued, had played out its originality, and thus had run its course.