This book provides a contextual account of the development of John Locke's political, religious, social and moral thought. It analyses many of Locke's unpublished manuscripts and relatively neglected works as well as the Two Treatises, the Letter Concerning Toleration and the Essay Concerning Human Understanding. Professor Marshall studies the development of Locke's political thought from absolutism to resistance, and provides significant revisions to current explanations of the immediate contexts and purposes of composition of the Two Treatises. He also sets out major accounts of Locke's moral, social and religious thought both as extremely important subjects in their own right and in order to challenge many scholars' interpretations of their influences on Locke's political thought.