Is it possible to think of any ingenious contrivance in nature as the result of chance, or of the fortuitous clashing and jostling of the elements? Living things are full of these ingenious contrivances which serve a definite end and keep life going. In the inorganic world there are no such contrivances; there is not the simplest bit of machinery--parts adjusted to parts, and the whole adjusted to some specific end. In all the clashing and jostling of bodies and forces through all the astronomic and geologic ages, not so much as the simplest mechanical device--a coiled spring or a carpenter’s hammer--has been struck out, and never can be. It is true that there are certain static conditions of matter that suggest design--natural bridges, natural obelisks, rude architectural and monumental structures, and human profiles on the rocks; but these are not the result of a constructive process, of a building-up, but the result of degradation: the erosive forces carve them out in obedience to the laws of matter and energy. We easily see how it all came about; and we can guide these forces so that they will repeat the process. But we do not see how the living body, with all its marvelous adjustments and coördinations, came about, and we cannot manipulate matter so as to produce the simplest living thing. Darwinians profess to see in natural selection--which is simply a name for an eliminating or sifting process--the explanation of even man himself. But the elimination of the weaker forms, which has gone on for whole geologic ages--for example, in the Grand Cañon of the Colorado--has not resulted in so much as one perfect, four-square foundation, or one perfect flying arch. Natural selection is not a creative, but a purely mechanical, process. We involuntarily personify it, and think of it as involving will and power of choice; think of it as selecting this and that, as a man does when he weeds his garden or selects his seeds, or breeds his animals. But it is not positive at all. It is negative--a dropping-out process. Chance, or chance selection, works alike in the organic and the inorganic realms, but it develops no new forms in the inorganic, because there is no principle of development, no organizing push. But in organized matter there is, in and behind all this organizing, a developing principle or tendency; the living force is striving toward other forms; in other words, development occurs because there is something to develop. An acorn develops, but a quartz pebble only changes.