I have been speaking of the scientific treatises or investigations of those who are not Catholics, to which the subject of Literature leads me; but I might even go on to speak of them in their persons as well as in their books. Were it not for the scandal which they would create; were it not for the example they would set; were it not for the certain tendency of the human mind involuntarily to outleap the strict boundaries of an abstract science, and to teach it upon extraneous principles, to embody it in concrete examples, and to carry it on to practical conclusions; above all, were it not for the indirect influence, and living energetic presence, and collateral duties, which accompany a Professor in a great school of learning, I do not see (abstracting from him, I repeat, in hypothesis, what never could possibly be abstracted from him in fact), why the chair of Astronomy in a Catholic University should not be filled by a La Place, or that of Physics by a Humboldt. Whatever they might wish to say, still, while they kept to their own science, they would be unable, like the heathen Prophet in Scripture, to “go beyond the word of the Lord, to utter any thing of their own head.” 2. So far the arguments hold good of certain celebrated writers in a Northern Review, who, in their hostility to the principle of dogmatic teaching, seem obliged to maintain, because subject-matters are distinct, that living opinions are distinct too, and that men are abstractions as well as their respective sciences. “On the morning of the thirteenth of August, in the year 1704,” says a justly celebrated author, in illustration and defence of the anti-dogmatic principle in political and social matters, “two great captains, equal in authority, united by close private and public ties, but of different creeds, prepared for battle, on the event of which were staked the liberties of Europe.… Marlborough gave orders for public prayers; the English chaplains read the service at the head of the English regiments; the Calvinistic chaplains of the Dutch army, with heads on which hand of Bishop had never been laid, poured forth their supplications in front of their countrymen. In the meantime the Danes might listen to the Lutheran ministers; and Capuchins might encourage the Austrian squadrons, and pray to the Virgin for a blessing on the arms of the holy Roman Empire. The battle commences; these men of various religions all act like members of one body: the Catholic and the Protestant generals exert themselves to assist and to surpass each other; before sunset the Empire is saved; France has lost in a day the fruits of eight years of intrigue and of victory; and the allies, after conquering together, return thanks to God separately, each after his own form of worship.”(37)