of creating new objects, so to speak, by means of a little mirror, is far more incomprehensible to them, than the stars which they have been condemned never to behold. The luminous ball that moves from east to west through the heavens, is a less astonishing thing to them than the fire on the hearth which they can lessen or augment at pleasure.[68] "Why talk to me," says Saunderson, "of all that fine spectacle which has never been made for me? I have been condemned to pass my life in darkness; and you cite marvels that I cannot understand, and that are only evidence for you and for those who see as you do. If you want me to believe in God, you must make me touch him." The minister replied that the sense of touch ought to be enough to reveal the divinity to him in the admirable mechanism of his organs. To this, Saunderson:—"I repeat, all that is not as fine for me as it is for you. But the animal mechanism, even were it as perfect as you pretend, and as I daresay it is—what has it in common with a Being of sovereign intelligence? If it fills you with astonishment, that is perhaps because you are in the habit of treating as a prodigy anything that strikes you as being beyond your own strength. I have been myself so often an object of admiration for you, that I have a poor opinion of what surprises you. I have attracted people from all parts of England, who could not conceive by what means I could work at geometry. Well, you must agree that such persons had not very exact notions about the possibility of things. Is a phenomenon in our notions beyond the power of man? Then we instantly say—'Tis the handiwork of a God. Nothing short of that can content our vanity. Why can we not contrive to throw into our talk less pride and more philosophy?. If nature offers us some knot that is hard to untie, let us leave it for what it is; do not let us employ for cutting it the hand of a Being, who then immediately becomes in turn a new knot for us, and a knot harder to untie than the first. An Indian tells you that our globe is suspended in the air on the back of an elephant. And the elephant! It stands on a tortoise. And the tortoise? what sustains that? … You pity the Indian: and yet one might very well say to you as to him—Mr. Holmes, my good friend, confess your ignorance, and spare me elephant and tortoise."[69]
The minister very naturally then falls back upon good authority, and asks Saunderson to take the word of Newton, Clarke, and Leibnitz. The blind man answers that though the actual state of the universe may be the illustration of a marvellous and admirable order, still Newton, Clarke, and Leibnitz must leave him freedom of opinion as to its earlier states. And then he foreshadows in a really singular and remarkable way that theory which is believed to be the great triumph of scientific discovery, and which is certainly the great stimulus to speculation, in our own time. As to anterior states "you have no witnesses to confront with me, and your eyes give you no help. Imagine, if you choose, that the order which strikes you so profoundly has subsisted from the beginning. But leave me free to think that it has done no such thing, and that if we went back to the birth of things and scenes, and perceived matter in motion and chaos slowly disentangling itself, we should come across a whole multitude of shapeless creatures, instead of a very few creatures highly organised. If I have no objection to make to what you say about the present condition of things, I may at least question you as to their past condition. I may at least ask of you, for example, who told you—you and Leibnitz and Clarke and Newton—that in the first instances of the formation of animals, some were not without heads and others without feet? I may maintain that these had no stomachs, and those no intestines; that some to whom a stomach, a palate, and teeth seemed to promise permanence, came to an end through some fault of heart or lungs; that the monsters annihilated one another in succession, that all the faulty (vicieuses) combinations of matter disappeared, and that those only survived whose mechanism implied no important mis-adaptation (contradiction), and who had the power of supporting and perpetuating themselves.
"On this hypothesis, if the first man had happened to have his larynx closed, or had not found suitable food, or had been defective in the parts of generation, or had failed to find a mate, then what would have become of the human race? It would have been still enfolded in the general depuration of the universe; and that arrogant being who calls himself Man, dissolved and scattered among the molecules of matter, would perhaps have remained for all time hidden in the number of mere possibilities.
"If shapeless creatures had never existed, you would not fail to insist that none will ever appear, and that I am throwing myself headlong into chimerical hypotheses. But the order is not even now so perfect, but that monstrous products appear from time to time."[70]
We have here a distinct enough conception, though in an exceedingly undigested shape, first, of incessant Variability in organisms as an actual circumstance, which we may see exemplified in its extreme form in the monstrous deviations of structure that occur from time to time before our own eyes; second, of Adaptation to environment as the determining condition of Survival among the forms that present themselves. Even as a bald and unsustained guess, this was an effective side-blow at the doctrine of final causes—a doctrine, as has been often remarked, which does not survive, in any given set of phenomena, the reduction of these phenomena to terms of matter and motion.
"I conjecture then," continues Saunderson, enlarging the idea of the possibilities of matter and motion, "that in the beginning when matter in fermentation gradually brought our universe bursting into being, blind creatures like myself were very common. But why should I not believe of worlds what I believe of animals? How many worlds, mutilated and imperfect, were peradventure dispersed, then re-formed, and are again dispersing at each moment of time in those far-off spaces which I cannot touch and you cannot behold, but where motion combines and will continue to combine masses of matter, until they have chanced on some arrangement in which they may finally persevere! O philosophers, transport yourselves with me on to the confines of the universe, beyond the point where I feel, and you see, organised beings; gaze over that new ocean, and seek across its lawless, aimless heavings some vestiges of that intelligent Being whose wisdom strikes you with such wonder here!
"What is this world? A complex whole, subject to endless revolutions. All these revolutions show a continual tendency to destruction; a swift succession of beings who follow one another, press forward, and vanish; a fleeting symmetry; the order of a moment. I reproached you just now with estimating the perfection of things by your own capacity; and I might accuse you here of measuring its duration by the length of your own days. You judge of the continuous existence of the world, as an ephemeral insect might judge of yours. The world is eternal for you, as you are eternal to the being that lives but for one instant. Yet the insect is the more reasonable of the two. For what a prodigious succession of ephemeral generations attests your eternity! What an immeasurable tradition! Yet shall we all pass away, without the possibility of assigning either the real extension that we filled in space, or the precise time that we shall have endured. Time, matter, space—all, it may be, are no more than a point."[71]
Diderot sent a copy of his work to Voltaire. The poet replied with his usual playful politeness, but declared his dissent from Saunderson, "who denied God, because he happened to have been born blind."[72] More pretentious, and infinitely less acute critics than Voltaire, have fixed on the same point in the argument and met it by the same answer; namely, that, blind as he was, Saunderson ought to have recognised an intelligent Being who had provided him with so many substitutes for sight; he ought to have inferred a skilful demiurgus from those ordered relations in the universe, which Thought, independently of Vision, might well have disclosed to him. In truth, this is not the centre of the whole argument. When Saunderson implies that he could only admit a God on condition that he could touch him, he makes a single sense the channel of all possible ideas, and the arbiter of all reasoned combinations of ideas. This is absurd, and Diderot, as we have seen, rapidly passed away from that to the real strength of the position. All the rest of the contention against final causes would have come just as fitly from the lips of a man with vision, as from Saunderson. The hypothetical inference of a deity from the marvels of adaptation to be found in the universe is unjustified, among other reasons, because it ignores or leaves unexplained the marvels of mis-adaptation in the universe. It makes absolute through eternity a hypothesis which can at its best only be true relatively—not merely to the number of our senses, but—to a few partially chosen phenomena of our own little day. It explains a few striking facts; it leaves wholly unexplained a far greater number of equally striking facts, even if it be not directly contradicted by them. It is the invention of an imaginary agency to account for the scanty successes of creation, and an attribution to that agency of