A magisterial mappa mundi of the terrain that Pierre Hadot has so productively worked for decades, this ambitious work revises our view of ancient philosophy--and in doing so, proposes that we change the way we see philosophy itself. Hadot takes ancient philosophy out of its customary realm of names, dates, and arid abstractions and plants it squarely in the thick of life. Through a meticulous historical reading, he shows how the various schools,...