That Descartes felt a difficulty in asserting creation in its proper sense, may be inferred from the fact that he always calls the soul la pensée, thought; never, if we recollect aright, a substance that thinks, which was itself a large stride toward pantheism, for pantheism consists precisely in denying all substantive existences except the one only substance, which is God. Spinoza developed his principles with a logic vastly superior to his own, and brought out errors which he probably did not foresee. Indeed, we do not pretend that Descartes intended to favor or had any suspicion that he was favoring pantheism; but he most certainly did not recognize any principle that would enable his disciples to oppose it, and in former days, before we knew the church, we ourselves found, or thought we found, pantheism flowing logically from his premises, and we escaped it only by rejecting the Cartesian philosophy.
Descartes revived in modern philosophy that antagonism between spirit and matter which was unknown to the scholastic philosophy, and which renders the mutual commerce of soul and body inexplicable. The scholastic doctors had recognized, indeed, matter and form; but with them matter was simply possibility, existing only in potentia ad formam, and was never supposed to be the basis or substratum of any existence whatever. The real existence was in the form, the forma or the idea. They distinguished, certainly, between corporeal and incorporeal existences; but not, as the moderns do, between spiritual and material existences, and the question between spiritualism and materialism, as we have it to-day, did not and could not come up with them. The distinction with them was between sensibles and intelligibles, the only distinction that philosophy by her own light knows. Spirit was a term very nearly restricted to God, and spiritual meant partaking of spirit, living according to the spirit; that is, living a godly life begotten by the Holy Spirit, as in the inspired writings of St. Paul.
Even the ancients did not distinguish, in the modern sense, between spirit and matter. Their gods were corporeal, but ordinarily impassible. The spirit was not a distinct existence, but was the universal principle of life, thought, and action, and the spirit of man was an emanation from the universal spirit, which at death flowed back and was reabsorbed in the ocean from which it emanated. Their ghosts were not disembodied spirits, as ours are, were not departed spirits, but the umbra or shade—a thin, aerial apparition, bearing the exact resemblance of the body, and had formed during life, if I may so speak, its inner lining, or the immediate envelope of the spirit. It is the body that after death still invests the soul, according to Swedenborg, who denies the resurrection of the flesh. According to ancient Greek and Roman gentilism it was not spirit, nor body, but something between the two. It hovered over and around the dead body, and it was to allay it, and enable it to rest in peace that the funeral rites or obsequies of the dead were performed, and judged to be so indispensable. The Marquis de Mirville, in his work on The Fluidity of Spirits, seems to think the umbra was not a pure imagination, and is inclined to assert it, and to make it the basis of the explanation of many of the so-called spirit-phenomena. He supposes it is capable of transporting the soul, or of being transported by the soul, out of the body, and to a great distance from it, and that the body itself will bear the marks of the wounds that may be given it. In this way he also explains the prodigies of bilocation.
But however this may be, the ghost of heathen superstition is never the spirit returned to earth, nor is it the spirit that is doomed to Tartarus, or that is received into the Elysian Fields, the heathen paradise. Hades, which includes both Tartarus and Elysium, is a land of shadows, inhabited by shades that are neither spirit nor body; for the heathen knew nothing, and believed nothing, of the resurrection of the flesh, and the reunion of soul and body in a future life. The spirit at death returns to its fountain, and the body, dissolved, loses itself in the several elements from which it was taken, and only the shade or shadow of the living man survives. Even in Elysium, the ghosts that sport on the flowery banks of the river, repose in the green bowers, or pursue in the fields the mimic games and pastimes that they loved, are pale, thin, and shadowy. The whole is a mimic scene, if we may trust either Homer or Virgil, and is far less real and less attractive than the happy hunting grounds of the red men of our continent, to which the good, that is, the brave Indian is transported when he dies. The only distinction we find, with the heathen, between spirit and matter, is, the distinction between the divine substance, or intelligence, and an eternally existing matter, as the stuff of which bodies or corporeal existences, the only existences recognized, are formed or generated.
But Descartes distinguished them so broadly that he seemed to make them each independent of the other. Why, then, was either necessary to the life and activity of the other? And we see in Descartes no use that the soul is or can be to the body, or the body to the soul. Hence, philosophy, starting from Descartes, branched out in two opposite directions, the one toward the denial of matter, and the other toward the denial of spirit; or, as more commonly expressed, into idealism and materialism, but as it would be more proper to say, into intellectism and sensism. The spiritualism of Descartes, so far as it had been known in the history of philosophy, was only the Neoplatonic mysticism, which substitutes the direct and immediate vision, so to speak, of the intelligible, for its apprehension through sensible symbols and the exercise of the reasoning faculty. From this it was an easy step to the denial of an external and material world, as was proved by Berkeley, who held the external world to consist simply of pictures painted on the retina of the eye by the creative act of God; and before him by Collier, who maintained that only mind exists. It was an equally short and easy step to take the other direction, assert the sufficiency of the corporeal or material, and deny the existence of spirit or the incorporeal, since the senses take cognizance of the corporeal and the corporeal only. Either step was favored by the ancient philosophy revived and set up against the scholastic philosophy. It was hardly possible to follow out the exaggerated and exclusive spiritualism of the one class without running into mystic pantheism, or the independence of the corporeal or material, without falling into material pantheism or atheism. These two errors, or rather these two phases of one and the same error, are the fundamental or mother error of this age—perhaps, in principle, of all ages—and is receiving an able refutation by one of our collaborateurs in the essay on Catholicity and Pantheism now in the course of publication in this magazine.
It is no part of our purpose now to refute this error; we have traced it from gentilism, shown that it is essentially pagan, and owes its prevalence in the modern world to the revival of Greek letters and philosophy in the fifteenth century, the discredit into which the study of Plato and the Neoplatonists threw the scholastic philosophy, and especially to the divorce of philosophy from theology, declared by Descartes in the seventeenth century. Yet we do not accept either exclusive materialism or exclusive spiritualism, and the question itself hardly has place in our philosophy, as it hardly had place in that of St. Thomas. It became a question only when philosophy was detached from theology, of which it forms the rational as distinguishable but not separable from the revealed element, and reduced to a mere Wissenchaftslehre, or rather a simple methodology. True philosophy joined with theology is the response to the question, What is, or exists? What are the principles and causes of things? What are our relations to those principles and causes? What is the law under which we are placed? and what are the means and conditions within our reach, natural or gracious, of fulfilling our destiny, or of attaining to our supreme good? Not a response to the question, for the most part an idle question, How do we know, or how do we know that we know?
Many of the most difficult problems for philosophers, and which we confess our inability to solve, may be eluded by a flank movement, to use a military phrase. Such is the question of the origin of ideas, of certitude, and the passage from the subjective to the objective, and this very question of spiritualism and materialism. All these are problems which no philosopher yet has solved from the point of view of exclusive psychology, or of exclusive ontology, or of any philosophy that leaves them to be asked. But we are much mistaken if they do not cease to be problems at all, when one starts with the principles of things, or if they do not solve themselves. We do not find them, in the modern sense, raised by Plato or Aristotle, nor by St. Augustine or St. Thomas. When we have the right stand-point, if Mr. Richard Grant White will allow us the term, and see things from the point of view of the real order, these problems do not present themselves, and are wholly superseded. Professor Huxley is right enough when he tells us that we know the nature and essence neither of spirit nor of matter. I know from revelation that there is a spirit in man, and that the inspiration of the Almighty giveth him understanding, but I know neither by revelation nor by reason what spirit is. God is a spirit; but if man is a spirit, it must be in a very different sense from that in which God is a spirit. Although the human spirit may have a certain likeness to the Divine spirit, it yet cannot be divine, for it is created; and they who call it divine, a spark of divinity, or a particle of God, either do not mean, or do not know what they literally assert. They only repeat the old gentile doctrine of the substantial identity of the spirit with divinity, from whom it emanates, and to whom it returns, to be reabsorbed in him—a pantheistic conception. All we can say of spiritual existences is, that they are incorporeal intelligences; and all we can say of man is, that he has both a corporeal and an incorporeal nature; and perhaps without revelation we should be able to say not even so much.
We know, again, just as little of matter. What is matter? Who can answer? Nay, what is body? Who can tell? Body, we are told, is composed of material elements. Be it so. What are those elements? Into what is matter resolvable in the last analysis? Into indestructible and indissoluble atoms, says Epicurus; into entelecheia, or self-acting forces, says Aristotle; into extension, says Descartes; into monads, each acting from its centre, and representing the entire universe from its own point of view, says Leibnitz; into centres of attraction and gravitation, says Father Boscovich; into pictures painted on the retina of the eye by the Creator, says Berkeley, the Protestant bishop of Cloyne, and so on. We may ask and ask, but can get no final answer.