=The Enlightenment in Great Britain.= The history of the philosophy of Great Britain includes the teachings of Locke, Berkeley, Hume, and the Scottish School. With the exception of the teachings of the reactionary Scottish School, all the important philosophical teachings appear in the first half of the eighteenth century. We need to understand, first, the philosophical position of Locke, who was the father of the Enlightenment. We shall then see how his doctrine developed in three different directions: (1) as Deism,――a rational Christianity, (2) as an associational psychology in ethics, (3) as a theory of knowledge in the philosophies of Berkeley and Hume. Our discussion of the philosophy of Bacon and Hobbes has been followed by that of Rationalism. It would, however, be a mistake for the reader to infer, as we are about to take up the study of Locke, that a long period of time intervened between Hobbes and Locke. A chronological comparison of their lives shows that they were contemporaries for forty-seven years. Both lived through the reign of Charles I, during the Commonwealth and the Restoration. Hobbes died eleven years before Locke published his only philosophical essay. We must remember, too, that the English empirical philosophers of the Enlightenment were not insulated from the Rationalists of the Continent. On the contrary, there was a lively interchange of ideas. Descartes influenced Hobbes and Hobbes influenced Spinoza. The influence of Descartes upon Locke was not inconsiderable, and Leibnitz felt the influence of Locke. Berkeley and Leibnitz arrived at idealistic conclusions from independent points of view. Bacon alone seems to stand apart both from his contemporaries and from his immediate followers.