Supposing then it to be the Will of the Creator to interfere in human affairs, and to make provisions for retaining in the world a knowledge of Himself, so definite and distinct as to be proof against the energy of human scepticism, in such a case,--I am far from saying that there was no other way,--but there is nothing to surprise the mind, if He should think fit to introduce a power into the world, invested with the prerogative of infallibility in religious matters. Such a provision would be a direct, immediate, active, and prompt means of withstanding the difficulty; it would be an instrument suited to the need; and, when I find that this is the very claim of the Catholic Church, not only do I feel no difficulty in admitting the idea, but there is a fitness in it, which recommends it to my mind. And thus I am brought to speak of the Church's infallibility, as a provision, adapted by the mercy of the Creator, to preserve religion in the world, and to restrain that freedom of thought, which of course in itself is one of the greatest of our natural gifts, and to rescue it from its own suicidal excesses. And let it be observed that, neither here nor in what follows, shall I have occasion to speak directly of Revelation in its subject-matter, but in reference to the sanction which it gives to truths which may be known independently of it,--as it bears upon the defence of natural religion. I say, that a power, possessed of infallibility in religious teaching, is happily adapted to be a working instrument, in the course of human affairs, for smiting hard and throwing back the immense energy of the aggressive, capricious, untrustworthy intellect:--and in saying this, as in the other things that I have to say, it must still be recollected that I am all along bearing in mind my main purpose, which is a defence of myself.
I am defending myself here from a plausible charge brought against Catholics, as will be seen better as I proceed. The charge is this:--that I, as a Catholic, not only make profession to hold doctrines which I cannot possibly believe in my heart, but that I also believe in the existence of a power on earth, which at its own will imposes upon men any new set of _credenda_, when it pleases, by a claim to infallibility; in consequence, that my own thoughts are not my own property; that I cannot tell that to-morrow I may not have to give up what I hold to-day, and that the necessary effect of such a condition of mind must be a degrading bondage, or a bitter inward rebellion relieving itself in secret infidelity, or the necessity of ignoring the whole subject of religion in a sort of disgust, and of mechanically saying every thing that the Church says, and leaving to others the defence of it. As then I have above spoken of the relation of my mind towards the Catholic Creed, so now I shall speak of the attitude which it takes up in the view of the Church's infallibility.