The design of the multiplied contrivances and adaptations exhibited by the eye is too obvious to need a formal statement. Comparatively few understand the wonderful mechanism of the eye; but we should consider it proof of idiotism, or insanity, for the weakest mind to doubt what is the object of the eye. This is, to be sure, a striking example. But out of the many organs of animals, how few are there of which we do not see the design! And as the subject is more examined, the few excepted cases are made still fewer. They are more numerous in plants, because we cannot so well understand them, and because of their microscopic littleness. They are so few, however, throughout all nature, that they never produce a doubt that, for every individual thing in creation, there is a distinct object. If we confine our views to the most simple parts of matter, we can see design in them. If we take a wider view, and examine those minor systems which are produced by the grouping of the elements of matter, we shall see design there; and if we rise still higher in our examination, and compare systems still more extensive, until we group all material things, wise and beautiful design is still inscribed upon all. In fine, creation is but a series of harmonies, wheel within wheel, in countless variety, yet all forming one vast and perfect machine. Examine nature as widely and as minutely as we may, we never find one part clashing with another part; no laws, governing one portion of creation, different from those governing the others. Amid nature's infinitely diversified productions and operations we find but one original model or pattern. As Dr. Paley finely expresses it, "We never get amongst such original or totally different modes of existence as to indicate that we are come into the province of a different Creator, or under the direction of a different will." All appears to have been the work of one mighty mind, capable of devising and creating the vast system so perfectly that every part shall beautifully harmonize with every other part; a mind capable of holding in its capacious grasp at once the entire system, and seeing the relation and dependence of all its parts, from the minutest atom up to the mightiest world. In short, the unity of design which pervades all creation is perfect, more so than we witness in the most finished machine of human construction; for "In human works, though labored on with pain, A thousand movements scarce one object gain; In God's, one single can its end produce, Yet serves to second too some other use."