With this equipment, such as it was, Mr. Green set to work to methodise the Coleridgian doctrines, and to construct from them nothing less than such a system of philosophy as should "virtually include the law and explanation of all being, conscious and unconscious, and of all correlativity and duty, and be applicable directly or by deduction to whatsoever the human mind can contemplate--sensuous or supersensuous--of experience, purpose, or imagination." Born under post-diluvian conditions, Mr. Green was of course unable to accomplish his self-proposed enterprise, but he must be allowed to have attacked his task with remarkable energy. "Theology, ethics, politics and political history, ethnology, language, aesthetics, psychology, physics, and the allied sciences, biology, logic, mathematics, pathology, all these subjects," declares his biographer, "were thoughtfully studied by him, in at least their basial principles and metaphysics, and most were elaborately written of, as though for the divisions of some vast cyclop'dic work." At an early period of his labours he thought it convenient to increase his knowledge of Greek; he began to study Hebrew when more than sixty years old, and still later in life he took up Sanscrit. It was not until he was approaching his seventieth year and found his health beginning to fail him that Mr. Green seems to have felt that his design, in its more ambitious scope, must be abandoned, and that, in the impossibility of applying the Coleridgian system of philosophy to all human knowledge, it was his imperative duty under his literary trust to work out that particular application of it which its author had most at heart. Already, in an unpublished work which he had made it the first care of his trusteeship to compose, he had, though but roughly and imperfectly, as he considered, exhibited the relation of his master's doctrines to revealed religion, and it had now become time to supersede this unpublished compendium, the _Religio Laici_, as he had styled it, by a fuller elaboration of the great Coleridgian position, that "Christianity, rightly understood, is identical with the highest philosophy, and that, apart from all question of historical evidence, the essential doctrines of Christianity are necessary and eternal truths of reason--truths which man, by the vouchsafed light of Nature and without aid from documents or tradition, may always and anywhere discover for himself." To this work accordingly Mr. Green devoted the few remaining years of his life, and, dying in 1863 at the age of seventy-two, left behind him in MS. the work entitled _Spiritual Philosophy: founded on the teaching of the late Samuel Taylor Coleridge,_ which was published two years later, together with the memoir of the author, from which I have quoted, by Mr. John Simon. It consists of two volumes, the first of which is devoted to the exposition of the general principles of Coleridge's philosophy, while