The Inner Citadel of Religion by Robert Caldwell first published in 1879.

WHEN we scrutinize the world in which we live, we cannot but be struck with the perfect adaptation of each thing that exists to everything else that exists. The creation of the elements of all things out of nothing, the beginning of evolution, the birth of force, or by whatever term the first origination of the existing order of nature may be described, may be apprehended by faith or inferred by reason; but everything that our senses and consciousness take cognizance of in the order of nature under which we live—everything that comes within the range of our own actual knowledge — is found to resolve itself into an adaptation of condition to condition, of law to law. We find the universe, as far as our acquaintance with it extends, to be a storehouse, not merely of forces and forms of matter, but also of correlations and co adjustments. And the existence of this system of adaptations testifies to us of the existence Of First Cause. Each of those ad of Great adaptations taken separately, and still more the Sum of them, as far as we know them, taken together, testifies directly to the intelligence and power, and indirectly to the “Godhead“ of their Author.