Nor can the Atheist here raise his usual argument from unknown facts, and say that, "far beyond the range of our most powerful telescopes, a boundless expanse of firmaments may exist." It concerns not our present argument whether such exist or not. Whatsoever discoveries may be made to eternity, of firmaments, ten thousand times ten thousand times larger than we now behold, they can never bear the smallest proportion to the infinite space in which they exist. Beyond these islets will extend gulfs and oceans immeasurable. Our argument, however, has no concern with the unknown possible, but with the actual fact—visible to the naked eye and confirmed by the telescope—that there is a portion of space in which millions of universes such as this might exist with safety, yet they do not. Worlds, therefore, do not exist by the necessity of their own nature, wherever there is room for them, but must have had some pre-existent, external, and supernatural cause of their existence in this place and not in other places. This implies choice—will—God.
The physical refutation of the self-existence of the universe is completed by the discovery, that all the orbs of heaven, as well as the earth, are in motion, and that an orderly and regulated motion.[193] The fact need not be illustrated, for it is not denied. The consequence is inevitable. That which is self-existent must be unchangeable; for change is an effect, and demands a cause; and the cause must exist before the effect, and produce it. Whatsoever is changeable, then, is a product of a prior cause, and so not self-existent. But every part of the universe is changeable, for it is in motion, which is a change of place; and, therefore, is not self-existent, but the product of a prior cause.
Professor Fick, who was some time since called from Zurich to fill the professorship of physiology at Wurzburg, and who is known by his experiments on muscular physics, in a recent work on the transformation of force, brings out the argument in proof of the non-eternity of our universe in a new form. He shows that heat is continually being lost by radiation; and when mechanical force is converted into heat some of that heat can never be brought back to be mechanical force. And as this change from mechanical force to heat is ever going on, all force must at last turn into heat, in which case all difference of temperature would be lost and universal stagnation and death would be the result. He then concludes in the following words, which we quote from Nature, Macmillan's weekly: "We are come to this alternative; either in our highest, or most general, our most fundamental scientific abstractions some great point has been overlooked; or the universe will have an end, and must have had a beginning; could not have existed from eternity, but must at some date, not infinitely distant, have arisen from something not forming part of the chain of natural causes, i. e., must have been created."[194]
To this it has been replied, that motion is the normal condition of matter; arising from the force of gravitation, acting in and upon the various bodies composing the universe; and mathematical calculations have been attempted to show how vortices, and spiral motions, could be produced by the force of gravitation, and the mutual resistances of the atoms originally composing the universe.
But this attempt is easily seen to be a failure. The attraction of gravitation alone can not possibly produce any such motion as we behold in the heavens; nor can it originate, nor sustain, any kind of eternal motion whatever. For the attraction of gravitation is always in right lines; but there is no rectilinear motion in the heavens; all celestial motions are curvilinear. Nor can the attraction of gravitation account for the maintenance of any kind of eternal motion. Its tendency is to draw all bodies to the center of gravity, and to keep them there, in one vast heap, by the force of their mutual attraction; thus bringing all motion to an eternal rest.
To this it is now replied that motion is the equivalent of light, heat, electricity, and chemical reaction; all of which are convertible into motion. These are properties of matter, and inseparable from it, and so as eternal as itself.
We have already disproved the eternity of matter; but if, for the sake of argument, it were granted, yet would not the regulated and orderly motions of the universe be thereby accounted for. For these forces either exactly balance the force of gravitation, or they do not. If they do not, and their repulsion prevails, by even the slightest degree, the particles of matter had been driven away into infinite space millions of years ago, and suns, and planets, and atheistic philosophers, would have vanished like the baseless fabric of a vision. But if the attraction of gravitation had prevailed, by even the weight of an ounce, long ages ago sun, moon and stars would have rushed together into one vast mountain mass, whose attraction would have been so great, that no living creature could move upon its surface, and whose parts would be compressed into a density compared with which quicksilver would be lighter than cork.
But if, on the other hand, it be alleged, that these inherent forces of matter exactly balance its power of gravitation—with which they have no other apparent relation—then the argument is irresistible, that these grains of sand and drops of water and globes of granite being unequal to such calculations, there was some calculating engineer at work arranging the motions of the stars.
No mechanical law is a sufficient cause for this motion. To allege that a power of orderly, regulated motion—and there is no other sort of motion in heaven or earth—is an inherent property of matter, is simply to insult our common sense, and overturn the foundation of all reason. For we have no knowledge of matter, and can have none, more certain than we have of the constitution of our own minds, which requires us to trace up every change among material objects to the energy and will of a person capable of planning and effecting the change. To refer us to the law of gravity is not to give us a cause for the motions of the heavenly bodies, but only a name; for law is only a rule of action. We demand a lawgiver—an agent—a force, capable of producing effects. When the law of projectiles makes a cannon-ball, and projects it, we will believe that the law of gravity made the worlds, and moves them.