The earlier "Life of Locke", by Lord King, had consisted largely of an assemblage of Locke's own letters and manuscripts, of great value to the historian, but of rather less interest to the student of Locke's philosophy. Fox Bourne's biography, by contrast, concentrates on Locke the philosopher, and seeks to place his philosophical works in the context of his life. Fox Bourne thus describes Locke's studies at Oxford, his distaste for scholasticism, the discovery of Descartes' "Meditations", and the role of his medical and scientific interests and of his friendships with Boyle, Sydenham and Newton, in shaping his thought. Although the seeds of the "Essay" may have been sown as early as 1670, Fox Bourne admits, it was during Locke's exile in Holland between 1683 and 1689, and under the influence of such Dutch friends as Le Clerc, that the great work really took shape. At the heart of the work, we are told, is the critique of revelation that occupies pride of place in Book Four - Locke's overriding concern was to articulate a rationally defensible and universally acceptable version of Christianity.