Tracing the exchange of ideas among history's key philosophers, The Great Conversation: A Historical Introduction to Philosophy, Ninth Edition, provides a generous selection of excerpts from major philosophical works and makes them more easily understandable to students with lucid and engaging explanations. Extensive cross-referencing shows students how philosophers respond appreciatively or critically to the thoughts of other philosophers. The Great Conversation, Ninth Edition, is also available in two separate e-book only volumes to suit your course needs:The Great Conversation: Volume I: Pre-Socratics through Descartes, Ninth EditionThe Great Conversation: Volume II: Descartes through the Twentieth Century, Ninth Edition