The acquired results of science appear simple through the effect of habit. The sun rises every day; who is still surprised at its rising? The solar system has been known a long while; it is taught in the humblest schools, and no longer surprises any one. But those who found out, after long efforts, what we learn without trouble, the discoverers, reckoned their discoveries very surprising. Kepler, one of the founders of modern astronomy, in the book to which he consigned his immortal discoveries, exclaims:[97] "The wisdom of the Lord is infinite, as are also His glory and His power. Ye heavens! sing His praises. Sun, moon, and planets, glorify Him in your ineffable language! Praise Him, celestial harmonies, and all ye who can comprehend them! And thou, my soul, praise thy Creator! It is by Him, and in Him, that all exists. What we know not is contained in Him as well as our vain science. To Him be praise, honor, and glory for ever and ever!" These words, Gentlemen, have not been copied from a book of the Church; they are read in a work which, as all allow, is one of the foundations of modern science.
I pass on to another example, and I continue to keep you in good and high company. Newton set forth his discoveries in a large volume all bristling with figures and calculations.[98] The work of the mathematician ended, the author rises, by the consideration of the mutual interchange of the light of all the stars, to the idea of the unity of the creation; then he adds, and it is the conclusion of his entire work: "The Master of the heavens governs all things, not as being the soul of the world, but as being the Sovereign of the universe. It is on account of His sovereignty that we call Him the Sovereign God. He governs all things, those which are, and those which may be. He is the one God, and the same God, everywhere and always. We admire Him because of His perfections, we reverence and adore Him because of His sovereignty. A God without sovereignty, without providence, and without object in His works, would be only destiny or nature. Now, from a blind metaphysical necessity, everywhere and always the same, could arise no variety; all that diversity of created things according to places and times (which constitutes the order and life of the universe) could only have been produced by the thought and will of a Being who is the Being, existing by Himself, and necessarily."
Here, Sirs, are noble thoughts, expressed in noble style. I recommend you to read throughout the pages from which I have quoted a few fragments. Let us now analyze the ideas of this great astronomer as thus expounded. We may note these three affirmations:
1. The universe displays an admirable order which reveals the wisdom of the Power which governs it.
2. The universe lives; it is not fixed, and its variations suppose an intelligent Power which directs it.
3. The variable existence of the universe shows that it is not necessary; it must have its cause in a Being who is the Being, necessarily, by His proper nature.
Such are the views of Newton. Examine this course of thought, and see if it is not natural. Observation reveals to us facts. Facts in themselves, isolated facts, are nothing for the mind; but in the facts of nature, human reason discovers an order, and in that order it recognizes its own proper laws. To keep within the domain of astronomy—there is harmony between our mind and the course of the stars. If you have any doubt about this, I appeal to the almanac. We there find it stated that in such a month, on such a day, at such an hour, there will be an eclipse of the sun or of the moon. How comes the editor of the almanac to know that? He has learnt it from the savants who have succeeded in explaining the phenomena of the skies. The savant therefore can in his study meet with the intelligence which directs the universe. If he makes no mistake in his calculations, the eclipse begins at the precise hour which he has indicated. If the eclipse did not take place at the instant foreseen, no one would suspect Nature of not following the course prescribed by the directing intelligence; the inference would be that there had been a fault in observation, or an error of figures on the part of the astronomer.
When science, then, does its part well, the mind of man encounters another mind which is governing the world and maintaining it in order. The special science of nature stops there, as we shall explain further on; but this is not all that man requires, when he makes use of all his faculties. All is passing and changing in the domain of experience; and reason seeks instinctively the cause of changeable facts in an unchangeable Being, the cause of transient phenomena in an eternal Being. Nature, therefore, does not suffice to account to us for itself. It demands a power to direct it, an intelligence to regulate it; an absolute eternal Being as its cause. This is what reason imperatively requires; and when we possess the idea of God, nature reveals to us His power and His wisdom.
This is an old argument, and they call it commonplace. It is commonplace, in fact; it has appeared over and over again in the discourses of Socrates, in the writings of Galen, of Kepler, of Newton, of Linnæus. Yes, this argument has fallen so low as to be public property, if we can say that truth falls when it shines with a splendor vivid enough to enlighten the masses. If I desired to bring together here the testimony of all the savants who have seen God in nature, the song of all the poets who have celebrated the glory of the Eternal as manifested by the creation, the enumeration would be long, and I should soon tire out your patience. You can understand therefore that if there are, as the misanthrope Rousseau says there are, philosophers who hold in such contempt vulgar opinions that they prefer error of their own discovery to truth found out by other people, then the ancient argument, which infers the wisdom of the Creator from the order of the creation, must be the object of but small esteem with them. Still I for my part take this old argument for a good one, and I mean to defend it.
Nature is verily and indeed a marvel placed before the observation of our minds. The growth of a blade of grass, the habits of an ant, contain for an attentive observer prodigies of wisdom. A drop of dew reflecting the beams of morning, the play of light among the leaves of a tree, reveal to the poet and the artist treasures of poetry. But too often, blinded by habit, we are unable to see; and when our mind is asleep, it seems to us that the universe slumbers. A sudden flash of light can sometimes arouse us from this lethargy. If science all at once delivers up to us some one of those grand laws which reveal in thousands of phenomena the traces of one and the same mind, the astonishment of our intellect excites in our soul an emotion of adoration. When the first rays of morning light up with a pure brightness the lofty summits of our Alps; when the sun at his setting stretches a path of fire along the waters of our lake, who does not feel impelled to render glory to the supreme Artist? When dark cold fogs rest upon our valleys at the decline of autumn, it only needs sometimes to climb the mountain-side, in order to issue all at once from the gloomy region, and see the chain of high peaks, resplendent with light, mark themselves out upon a sky of incomparable blue. Often have I given myself the delight of this grand spectacle, and always at such a time my heart has uttered spontaneously from its depths that hymn of adoration: