Ranging over 2,500 years of philosophical writing, this five-volume collection of essays is an unrivalled companion for studying and reading philosophy. Each essay provides an overview of a work and a clear exposition of its central ideas. Covering the most influential works of our greatest philosophers, the series offers remarkable insights into the ideas out of which our present ways of thinking emerged. VOLUME 1 offers readers a deep understanding of ancient philosophy and the medieval period in Western Europe during which philosophers sought to harmonize the great thinkers of antiquity with Christian belief. The works of Plato, Aristotle, Lucretius, Sextus Empiricus, Plotinus, Augustine, Anselm, Aquinas, Duns Scotus, and Ockham are considered. Contributors include Hugh H. Benson, Stephen R. L. Clark, Richard Cross, Paula Gottlieb, R.J. Hankinson, Peter King, Christopher Kirwan, Harry Lesser, John Marenbon, and Paul O'Grady.