Plato's thinking on courage, manliness and heroism is both profound and central to his work, but these areas of his thought remain underexplored. This book examines his developing critique of the notions and embodiments of manliness prevalent in his culture (particularly those in Homer), and his attempt to redefine such notions in accordance with his ethical, psychological and metaphysical principles. It further seeks to locate the discussion within the framework of Plato's general approach to ethics.