One difficulty with interpreting Plato is that his philosophical views are hidden within his dialogues and articulated through his dramatic characters. Nowhere in the dialogues does Plato the philosopher speak directly to his readers. One of the fundamental tenets of Platonism is the assertion that 'virtue is knowledge'. Yet Socrates and the other characters in the dialogues do not maintain consistent views on the role of knowledge in virtue. This book develops a new interpretation of the puzzling claim that virtue is knowledge, while also providing a reading of the dialogues as a whole...