From Chesteron's The Everlasting Man: on evolution and its ontological predicate!
There remains only the fourth element or rather the first; that which had been in a sense forgotten because it was the
first. I mean the primary and overpowering yet impalpable impression that the universe after all has one origin and one aim; and because it has an aim must have an author. What became of this great truth in the background of men's minds, at this time, it is perhaps more difficult to determine. Some of the Stoics undoubtedly saw it more and more clearly as the clouds of mythology cleared and thinned away; and great men among them did much even to the last to lay the foundations of a concept of the moral unity of the world. The Jews still held their secret certainty of it jealously behind high fences of exclusiveness; yet it is intensely characteristic of the society and the situation that some fashionable figures, especially fashionable ladies, actually embraced Judaism. But in the case of many others I fancy there entered at this point a new negation. Atheism became really possible in that abnormal time; for atheism is abnormality. It is not merely the denial of a dogma. It is the reversal of a subconscious assumption in the soul; the sense that there is a meaning and a direction in the world it sees. Lucretius, the
first evolutionist who endeavoured to substitute Evolution for God, had already dangled before men's eyes his dance of glittering atoms, by which he conceived cosmos as created by chaos. But it was not his strong poetry or his sad philosophy, as I fancy, that made it possible for men to entertain such a vision. It was something in the sense of impotence and despair with which men shook their fists vainly at the stars, as they saw all the best work of humanity sinking slowly and helplessly into a swamp. They could easily believe that even creation itself was not a creation but a perpetual fall, when they saw that the weightiest and worthiest of all human creations was falling by its own weight. They could fancy that all the stars were falling stars; and that the very pillars of their own solemn porticos were bowed under a sort of gradual deluge. To men in that mood there was a reason for atheism that is in some sense reasonable. Mythology might fade and philosophy might stiffen; but if behind these things there was a reality, surely that reality might have sustained things as they sank. There was no God; if there had been a God, surely this was the very moment when He would have moved and saved the world.