If this is the aim of the human mind and its science, there is but one freedom of research, the freedom for the truth, the right not to be hampered in searching for the truth, not to be forced to hold as true what has not been previously vouched for to the intellect as true; in a word, the freedom to wear but one chain, the golden chain of the truth. Hence, if the scientist should be compelled by party interest, or public opinion, to pursue a course in science which he cannot acknowledge as the right one; if the younger scientist should feel constrained to conform the results of his research to the pleasure of his older colleagues or of men of name, against his own better judgment, then he would be deprived of his rightful freedom of searching for the truth, and of deciding for himself when he has found it. But there is one sort of freedom the scientist should never claim —freedom against the truth, freedom to ignore the truth, to emancipate himself from the truth. He is bound to accept every truth, sufficiently proved, even religious dogmas, miracles too, provided they are authenticated. Not freedom, but truth, is the purpose of research: emancipation from the truth is degeneration of the intellect, destruction of science.
What, then, does the duty to believe require of the faithful Christian? He is required, first of all, to assure himself of the certain credibility of those truths which he is required to believe, and here authentic proofs are offered him. On his perception of the credibility of these truths, he ought to assent to and accept God's testimony. Hence there should be no coercion to believe without interior conviction, no obstacle put in the way of recognizing the truth. Where, then, is here any opposition to the lawful freedom of research, to the right of unimpeded search for the truth? How is reason hindered in its search for the truth when truth is offered it by an infallible authority? We have here no opposition to the laws of reason, but due honour to its sacred rights; no bondage, but elevation and enrichment, completion and crowning of its thought, for the highest truth has been communicated to the reason that it may be of one mind with that Infinite Wisdom which has shaped reason for the truth, and from which it obtains its light as the planet from the sun around which it revolves.
Therefore, it cannot be said that “the Catholic resolves to believe as true what the Church teaches in the Apostles' Creed, but were he offered anything else as Church doctrine he would accept it as well. Hence these doctrines do not express his own personal opinions, they are something extraneous to him.” (W. Herrmann, Roemische u. evangelische Sittlichkeit, 3d ed., 1903, p. 3). No, what the Catholic, what any true Christian, believes by faith, that is his innermost conviction, as it is the firm conviction of the historian that what he has drawn from reliable sources is true. – But what if the contrary were offered him? Well, this assumption is absurd; and why? Because God and His Church are infallible, and an infallible authority cannot speak the truth and its contrary at the same time. Much less than a reliable historical witness can testify to the truth and its contrary at the same time.
This same conviction gives to the faithful Christian the firm assurance that no certain result of human research will ever come in conflict with his faith, just as the mathematician does not fear that his principle will ever be contradicted by any further work. Truth can never contradict truth. “Thus we believe and thus we teach and herein lies our salvation.” It is the very old conviction of the faithful Christian “that philosophy, that is, the study of wisdom, and religion are not different things.” Non aliam esse philosophiam, i.e., sapientiae studium et aliam religionem (Augustinus, De Vera Religione, 5). It is precisely this that enables the believing scientist to devote himself with great freedom and impartiality to research in every field, and to acknowledge any certified result without fear of ever having to stop before a definite conclusion.
Such is the peace between faith and science according to Christian principles. They are not torn apart, but join hands peacefully, like truth with truth, like two certain convictions, only gained in different ways. Similar is the peace and harmony between the results of various sciences, as physics and astronomy, geology and biology, which results, though arrived at by different methods, are still not opposed to each other, because they are both true.
The authority of faith, however, must be infallible; the authority of a scientist, a school or the state, can never approach us with an absolute obligation to believe it, because it cannot vouch for the truth. To the Catholic his Church proves itself infallible; hence everything is here logically consequent. Protestant Church authorities have not infallibility, nor do they claim it. Hence their precepts are seen more and more opposed. Hence to the Protestant the firm attachment of the Catholic to his Church must ever remain unintelligible, and it is regrettable that Catholics take instruction from Protestants about their relation to their Church.2
We must go a step further. If there is a divine revelation or an infallible Church – we speak only hypothetically – then no man and no scientific research can claim the right to contradict this revelation and Church. Scientific research is not the hypostatized activity of a superhuman genius, of a god-like intelligence. No, it is the activity of a human intellect, and the latter is subject to God and truth everywhere. There can be no freedom to oppose the truth; no privilege not to be bound to the truth but rather to have the right to construct one's views autonomously.
But here lies the deeper reason why to-day thousands to whom Kant's autonomism in thought has become the nerve of their intellectual life, will have nothing to do with guidance by revelation and Church. They can no longer understand that their reason should accept the truth from an external authority, not, indeed, because they would not find the truth, but because they would lose their independence.
It was Sabatier who maintained that “an external authority, no matter how great one may think it to be, does not suffice to arouse in us any sense of obligation.” And Th. Lipps says on this further: “If obedience is taken in its narrower sense, that is, of determination by the will of another, then no obedience is moral.” “In brief, obedience is immoral – not as a fact but as a feeling, betokening an unfree, slavish mind” (Die ethiseben Grundfragen, 2d ed., 1905, p. 119). And W. Herrmann assures us. “We would deem it a sin if we dared treat a proposition as true of which the ideas are not our own. If we should find such a proposition in the Bible, then we may perhaps resolve to wait and see whether its truth cannot be brought home to us after we have obtained a clearer and stronger insight of ourselves. But from the resolution to take that proposition as true without more ado, we could not promise ourselves anything beneficial.”
It is for the sovereign subject himself to decide whether the ideas offered are compatible with the rest of his notions. A truth offered from without is acceptable to the subject only when, and because, he can produce of himself at the same time what is offered; but he cannot accept the obligation of submitting to that truth in obedience to faith. “There is no infallible teaching authority on earth, nor can there be any. Philosophy and science would have to contradict themselves to acknowledge it,” says another champion of Kant's freedom (Paulsen, Philosophia militans, 2d ed., p. 52). Hence the reason why there cannot be any infallible authority is, not because it does not offer the truth, but because the human intellect must not be chained down.
Now, this is no longer true freedom, but rebellion against the sacred right that truth has over