"A revealed dogma is always opposed to the free research that may contradict it. The result of science is not to banish the divine altogether, but ever to place it at a greater distance from the world of particular facts in which men once believed they saw it."--RENAN, Essay on Islamism and Science. A detailed account of the rise and progress of the Christian religion is not within the scope of this book. But as that religion, more especially in the elaborated theological form which it ultimately assumed, became the chief barrier to the development of Greek ideas; except, as has been remarked, in the degree that these were represented by Aristotle, and brought into harmony with it; a short survey of its origin and early stages is necessary to the continuity of our story. The history of that great movement is told according to the bias of the writers. They explain its rapid diffusion and its ultimate triumph over Paganism as due either to its Divine origin and guidance; or to the favourable conditions of the time of its early propagation, and to that wise adaptation to circumstances which linked its fortunes with those of the progressive peoples of Western Europe. In the judgment of every unofficial narrator, this latter explanation best accords with the facts of history, and with the natural causes which largely determine success or failure. The most partisan advocates of its supernatural, and therefore special, character have to show reason why the fortunes of the Christian religion have varied like those of other great religions, both older and younger than it; why, like Buddhism, it has been ousted from the country in which it rose; and why, in competition with Brahmanism, as Sir Alfred Lyall testifies in his Asiatic Studies (p. 110), and with Mohammedanism in Africa, it has less success than these in the mission fields where it comes into rivalry with them. Riven into wrangling sects from an early period of its history, it has, while exercising a beneficent influence in turbulent and lawless ages, brought not "peace on earth, but a sword." It has been the cause of undying hate, of bloody wars, and of persecutions between parties and nations, whose animosity seems the deeper when stirred by matters which are incapable of proof. As Montaigne says, "Nothing is so firmly believed as that which is least known." To bring the Christian religion, or, rather, its manifold forms, from the purest spiritualistic to such degraded type as exists, for example, in Abyssinia, within the operation of the law which governs development, and which, therefore, includes partial and local corruption; is to make its history as clear as it is profoundly instructive; while, to demand for it an origin and character different in kind from other religions, is to import confusion into the story of mankind, and to raise a swarm of artificial difficulties. "If," as John Morley observes in his criticism of Turgot's dissertation upon The