From the service we have tried to make natural science render to our religion, we might be expected possibly to take up the position that the absolute contribution of Science to Revelation was very great. On the contrary, it is very small. The _absolute_ contribution, that is, is very small. The contribution on the whole is immense, vaster than we have yet any idea of. But without the aid of the higher Revelation this many-toned and far-reaching voice had been forever dumb. The light of Nature, say the most for it, is dim--how dim we ourselves, with the glare of other Light upon the modern world, can only realize when we seek among the pagan records of the past for the groupings after truth of those whose only light was this. Powerfully significant and touching as these efforts were in their success, they are far more significant and touching in their failure. For they did fail. It requires no philosophy now to speculate on the adequacy or inadequacy of the Religion of Nature. For us who could never weigh it rightly in the scales of Truth it has been tried in the balance of experience and found wanting. Theism is the easiest of all religions to get, but the most difficult to keep. Individuals have kept it, but nations never. Socrates and Aristotle, Cicero and Epictetus had a theistic religion; Greece and Rome had none. And even after getting what seems like a firm place in the minds of men, its unstable equilibrium sooner or later betrays itself. On the one hand theism has always fallen into the wildest polytheism, or on the other into the blankest atheism. "It is an indubitable historical fact that, outside of the sphere of special revelation, man has never obtained such a knowledge of God as a responsible and religious being plainly requires. The wisdom of the heathen world, at its very best, was utterly inadequate to the accomplishment of such a task as creating a due abhorrence of sin, controlling the passions, purifying the heart, and ennobling the conduct."[61] What is the inference? That this poor rush-light by itself was never meant to lend the ray by which man should read the riddle of the universe. The mystery is too impenetrable and remote for its uncertain flicker to more than make the darkness deeper. What indeed if this were not a light at all, but only part of a light--the carbon point, the fragment of calcium, the reflector in the great Lantern which contains the Light of the World?