Originally published during the early part of the twentieth century, the Cambridge Manuals of Science and Literature were designed to provide concise introductions to a broad range of topics. They were written by experts for the general reader and combined a comprehensive approach to knowledge with an emphasis on accessibility. Plato: Moral and Political Ideals by Adela Marion Adam, first printed in 1913, deals with the main substance of Plato's philosophy of ethics and politics, set within the context of his intellectual debt to Socrates.