There is a passage in Mr. Darwin's "Origin of Species" which I must now quote, because it shows how strongly the supposed action and abstention of the infinite Creator, according to the Darwinian theory, resembles the action and abstention of Plato's Demiurgus: "Although the belief that an organ so perfect as the eye could have been formed by natural selection, is enough to stagger any one; yet in the case of any organ, if we know of a long series of gradations in complexity, each good for its possessor; then, under changing conditions of life, there is no logical impossibility in the acquirement of any conceivable degree of perfection through natural selection. In the cases in which we know of no intermediate or transitional states, we should be extremely cautious in concluding that none can have existed, for the metamorphoses of many organs show what wonderful changes in function are at least possible. For instance, a swim-bladder has apparently been converted into an air-breathing lung. The same organ having performed simultaneously very different functions, and then having been in part or in whole specialized for one function; and two distinct organs having performed at the same time the same function, the one having been perfected while aided by the other, must often have largely facilitated transitions." Here, then, we have it propounded that after the creation of the rudest and simplest form of a visual organ, the infinite God abstains from direct and special creation of such a perfect and elaborate organ as the human eye, and leaves it to be worked out by natural selection; there being no logical impossibility, it is said, in this hypothesis. We are cautioned not to conclude, because we can not find the intermediate and transitional states of the visual organs, that they never existed; we are told that they are at least possible, and that analogies show they must have existed; and from the possibility of their existence and from the assumption that they happened, we are to believe that the Omnipotent God, refraining from the exercise of his power to create the human eye, with its wondrously perfect structure, left it to be evolved by natural selection out of the rudest and simplest visual organ which he directly fashioned.