M. Comte's theory is liable to another objection, the force of which he seems, in some measure, although inadequately, to have felt and acknowledged. The three states or stages, which he describes as necessarily successive, are, in point of fact, simultaneous. They do not mark so many different eras in the course of human progress,—they denote the natural products of man's intelligence, the constituent elements of his knowledge in all states of society. The Theological, the Metaphysical, and the Scientific elements have always coëxisted. Diverse as they may be in other respects, they resemble each other in this,—they are all the natural and spontaneous products of man's intelligent activity. That they were, to a certain extent, simultaneous at first, and that they are simultaneous still, is actually admitted by M. Comte, while he conceives, nevertheless, that they are radically incompatible with each other;[86] and their coexistence hitherto is felt by him to be a serious objection to his fundamental law, which represents them not only as necessarily successive, but also as mutually exclusive. The fact is admitted, and that fact is fatal to his whole theory. For if the three methods have coexisted hitherto, why may they not equally coexist hereafter? And what ground is left for the reckless prediction that Theology is doomed, and must fall before the onward march of Positive Science? If man was able from the beginning to observe, to compare, to abstract, and to generalize, and if the fundamental laws of human thought have been ever the same, it follows that there must have been a tendency, coeval with the origin of the race, towards Theological, Metaphysical, and Inductive Speculation, and that the same tendency must continue as long as his powers remain unchanged. It can only, therefore, be a preponderance, more or less complete, of one of the three methods over the other two, that we should be warranted in expecting, even under the operation of M. Comte's favorite law; and yet he boldly proclaims the utter exclusion of Metaphysics, and the entire and everlasting elimination of Theology, as branches of human knowledge!
M. Comte's theory is still more vulnerable at another point. The fundamental assumption on which it is based is utterly groundless. It amounts to this, that all knowledge of causes, whether efficient or final, is interdicted to man, and incapable of being reached by any exertion of his faculties.[87] He tells us that Theology is impossible, for this reason, that, in the view of the Positive Philosophy, all knowledge of causes is absolutely excluded; nay, he admits that Theology is inevitable if we inquire into causes at all. We know of no simpler or more effectual method of dealing with his specious sophistry on this subject, than by showing that, if his general principle be conclusive against the knowledge of God, it is equally conclusive against the knowledge of any other being or cause; just as Sir James Mackintosh dealt with the skeptical philosophy of Hume, when, with admirable practical sagacity, he said: "As those dictates of experience which regulate conduct must be the objects of belief, all objections which attack them, in common with the principles of reasoning, must be utterly ineffectual. Whatever attacks every principle of belief, can destroy none. As long as the foundations of knowledge are allowed to remain on the same level with the maxims of life, the whole system of human conviction must continue undisturbed.... Skepticism has practical consequences of a very mischievous nature. This is because its universality is not steadily kept in view and constantly borne in mind. If it were, the above short and plain remark would be an effectual antidote to the poison. But, in practice, it is an armory from which weapons are taken to be employed against some opinions, while it is hidden from notice that the same weapons would equally cut down every other conviction. It is thus that Mr. Hume's theory of causation is used as an answer to arguments for the existence of the Deity, without warning the reader that it would equally lead him to expect—that the sun will not rise to-morrow."[88]
The exclusion of all knowledge of causes is so indispensable to M. Comte's theory that he admits "the inevitable tendency of our intelligence towards a philosophy radically Theological, as often as we seek to penetrate, on whatever pretext, into the intimate nature of the phenomena."[89] The exclusion of such knowledge would, of course, be fatal to Theology, since, without taking some account of causes, efficient and final, we cannot rise to God as the author of the universe. But did it never occur to M. Comte that the self-same principle may possibly be destructive of his present, or, at least, of his posthumous fame, as the author of the Positive Philosophy? For, if we can know nothing of efficient causes, in what sense, or on what ground, shall any one presume to ascribe the authorship of this system to M. Comte? True, it may be said,—Here is an effect which exhibits manifest signs of intelligence, order, and scientific skill; its parts are regularly adjusted and all directed to a common end; and, reasoning after the teleological method, we must infer that it proceeded from a very clever, but somewhat eccentric mind; but, unfortunately, final causes are as expressly interdicted as efficient ones; and, on the principles of his own theory, the "Course of Positive Philosophy" can never be warrantably ascribed to the authorship of M. Comte.
A still more serious objection to M. Comte's theory respecting the law of human development arises from the false view which it exhibits of the nature and history of Truth, considered as the object of human knowledge. It is a favorite opinion with him, that man can have no absolute knowledge; that truth is not fixed, but fluctuating; that what was believed in one age, and believed necessarily, according to the fundamental laws of thought, is as necessarily disbelieved in the next; and that there is no standard of truth at any time better or surer than the public opinion, or general consent, of the most advanced classes of society.[90] This theory of Truth, as necessarily mobile and fluctuating, has a tendency, we think, to engender universal skepticism, even when it is stated, with various important modifications, by such writers as Lamennais and Morell; but, in the hands of M. Comte, it becomes more dangerous still, since it represents the human race as having been from the beginning, through a long series of ages, subject to a law of development which not only permitted, but actually compelled them to believe a lie; and thus casts a dark shade of suspicion both on the constitution of man and on the government of God.
Such a theory would seem also to preclude all rational calculations respecting the future progress and prospects of the race. For what ground can exist for any prognostication in regard to the ulterior advancement or ultimate destiny of man, if it be true that, in his past history, Fetishism has passed into Polytheism, and Polytheism into Monotheism, without any extraneous instruction, and by the mere action of those inherent laws to which humanity is subject? And, still more, if it be further true that even now the human mind is in a state of transition, passing through the crisis of Metaphysical doubt towards the goal of Positive Atheism, who shall assure us that this will be its last and final metamorphosis? It does appear to us to be one of the most singular and perplexing anomalies of his elaborate system, that he can dogmatize so confidently on the terminus ad quem of human progress, when from the terminus a quo there has been, according to his own account, a series of variations so wonderful, and a succession of states so diverse and opposite, as those which he describes. And yet he pronounces oracularly that Positive Science is the ultimate landing-place of human thought, and that universal Atheism is the final barrier which must needs close and terminate the long series of developments.
We have spoken sternly of his system; we have no wish to speak harshly of the man. Had we any disposition to do so, there is more than enough in the personal explanation, prefixed to the closing volume of his work, effectually to disarm us. We have too much sympathy with the trials of a vigorous but eccentric mind, struggling in untoward circumstances, and against an adverse tide, to maintain a position of honorable independence, to say a word that could wound the feelings or injure the prospects of a man of science. But it is not unkind to add that his life might have been a more prosperous one had he devoted himself to the pursuits of Science, without assailing the truths of Religion; and that his fame would have been at once more extensive and more enduring had it been left to repose on his Classification or Hierarchy of the Sciences, without being associated with the more doubtful merits of his fundamental law of Man's Development.
SECTION IV.
THEORY OF ECCLESIASTICAL DEVELOPMENT.—J. H. NEWMAN.
This particular phase of the general theory bears less directly on the subject of our present inquiry than either of the three which have already passed under review, and yet it has recently been applied in such a way as may entitle it to a passing notice.
For while the theory of Ecclesiastical Development has a direct relation only to the question in regard to the Rule of Faith, it has also an indirect or collateral relation to the truths of Natural as well as of Revealed Religion; and this relation demands for it, especially in the existing state of theological speculation, the earnest attention of all who are concerned for the maintenance even of the simplest and most elementary articles of Divine truth.