Neque enim Cathedra Apostolica aliud est, quam supremum authenticum magisterium, cujus definitiva sententia doctrinalis obligat universam Ecclesiam ad consensum. Intentio hæc definiendi doctrinam seu docendi definitivâ sententiâ et auctoritate obligante universam Ecclesiam ad consensum debet esse manifesta et cognoscibilis claris indiciis.

In the case we have before us, I should say that the “clara indicia” were all the other way; and indeed, were it not for the dust which controversialists have tried to throw in our eyes, I should be disposed to add that we might fairly drop this part of our subject—I mean the part which raises the question whether there was not some decision or definition, such as Catholics are bound by their principles to admit as infallible, given against the Copernican doctrine.

It is right, however, to notice one or two other arguments urged by Mr. Roberts.

Some of these consist in bringing forward supposed parallel cases, in which the Pope has insisted on a full and complete assent being given to the decision of some Roman Congregation. One case is that of a “distinguished theologian and philosopher, Günther,” whose works were condemned by a decree of the Index, having, however, the notice that the Pope had ratified the decision and ordered its publication. This was in 1857. Günther and many of his followers submitted, but others contended that a merely disciplinary decree was not conclusive. On this Pope Pius IX. addressed a brief to the Archbishop of Cologne, in which he intimated that a decree sanctioned by his authority and published by his order should have been sufficient to close the question, that the doctrine taught by Günther could not be held to be true, and that it was not permitted to any one to defend it from that time forward.

I extract the words as given by Mr. Roberts:

Quod quidem Decretum [that of the Index] Nostra Auctoritate sancitum Nostroque jussu vulgatum, sufficere plane debebat, ut questio omnis penitus dirempta censeretur, et omnes qui Catholico gloriantur nomine clare aperteque intelligerent sibi esse omnino obtemperandum, et sinceram haberi non posse doctrinam Güntharianis libris contentam, ac nemini deinceps fas esse doctrinam iis libris traditam tueri ac propugnare, et illos libros sine debita facultate legere ac retinere.

Mr. Roberts, it must be remembered, is not simply investigating the history of Galileo, but is contending, for other reasons, against certain opinions on the subject of Papal infallibility held by an able foreign theologian, M. Bouix, and by Dr. Ward, and he uses Galileo as a weapon (and, in his estimation, a most formidable weapon) in the controversy. Now, in the capacity I have assumed of a lay theologian, I do not feel bound to discuss whether the decree in Günther’s case was merely disciplinary, or whether it was dogmatic; whether it came within the category of strictly infallible pronouncements, or whether it did not; and supposing the former alternative, whether it was infallible in virtue of the Pope’s sanction and command to publish in the first instance, or whether it only became so in virtue of the brief addressed to the Archbishop of Cologne. All these questions, interesting in themselves, I feel myself at liberty to pass over, and to leave them, with the most profound respect, to be sifted by professed theologians; I merely venture to remark, without attempting to argue the matter, that, to my uninstructed intelligence, the whole thing, including the Pope’s brief, appears to have a disciplinary character rather than anything else.

What, however, I would say is this—the questions above mentioned, which in the Günther case are doubtful, are in that of Galileo clear enough; the clause stating that the Pope had sanctioned the decree, and ordered it to be published, on which the doubt alluded to is founded, did not appear in the decree against the Copernican books; nor did the Popes of that day issue any brief, such as Pius IX. addressed to the Archbishop of Cologne.

Mr. Roberts, it is true, thinks he has a clenching argument in a Bull of Pope Alexander VII., of which I will speak hereafter, and which in my humble judgment has the least force of any that he has adduced.

The case of Professor Ubaghs, of the University of Louvain, which Mr. Roberts thinks still more to the point, seems, I confess, to me even weaker than the other for our present purpose. Here, again, I leave it to theologians to decide whether the decree was or was not infallible; but it undoubtedly appears, in point of form, to be a doctrinal one, and emanated from the United Congregations of the Index and Inquisition, to whom the Pope had expressly entrusted the examination of the subject, and it was as follows: “Wherefore the most eminent cardinals have arrived at this opinion: that in the philosophical works, hitherto published by G. C. Ubaghs, and especially in his Logic and Theodicea, doctrines or opinions are found that cannot be taught without danger” (inveniri doctrinas seu opiniones, quæ absque periculo tradi non possunt). “Which judgment our most Holy Lord Pope Pius IX. has ratified and confirmed by his supreme authority.” Even then some persons maintained that the decree was disciplinary and not doctrinal. Cardinal Patrizi, however, writing in the Pope’s name to the Primate of Belgium (if I mistake not), intimated that the dissentients must acquiesce ex animo in the judgment of the Apostolic See. Consequently all the professors who had committed themselves to the proscribed opinions were required to make an act of submission to the effect just mentioned. The decree was treated as strictly doctrinal, and if so was, I maintain, essentially different from the one we have now before us.