Berkeley, George, 1685-1753. Berkeley, George, 1685-1753. The principles of human knowledge [and] three dialogues between Hylas and Philonous / Three dialogues between Hylas and Philonous edited with an introduction by G.J. Warnock. - [London] : Fontana, [1962] Includes bibliographical references. Subjects--Topical Terms: Knowledge, Theory of.Idealism.Soul.