And now, Gentlemen, I may bring a somewhat tedious discussion to a close. It will not take many words to sum up what I have been urging. I say then, if the various branches of knowledge, which are the matter of teaching in a University, so hang together, that none can be neglected without prejudice to the perfection of the rest, and if Theology be a branch of knowledge, of wide reception, of philosophical structure, of unutterable importance, and of supreme influence, to what conclusion are we brought from these two premisses but this? that to withdraw Theology from the public schools is to impair the completeness and to invalidate the trustworthiness of all that is actually taught in them. But I have been insisting simply on Natural Theology, and that, because I wished to carry along with me those who were not Catholics, and, again, as being confident, that no one can really set himself to master and to teach the doctrine of an intelligent Creator in its fulness, without going on a great deal farther than he at present dreams. I say, then, secondly:—if this Science, even as human reason may attain to it, has such claims on the regard, and enters so variously into the objects, of the Professor of Universal Knowledge, how can any Catholic imagine that it is possible for him to cultivate Philosophy and Science with due attention to their ultimate end, which is Truth, supposing that system of revealed facts and principles, which constitutes the Catholic Faith, which goes so far beyond nature, and which he knows to be most true, be omitted from among the subjects of his teaching? In a word, Religious Truth is not only a portion, but a condition of general knowledge. To blot it out is nothing short, if I may so speak, of unravelling the web of University Teaching. It is, according to the Greek proverb, to take the Spring from out of the year; it is to imitate the preposterous proceeding of those tragedians who represented a drama with the omission of its principal part. Discourse IV. Bearing Of Other Branches Of Knowledge On Theology. 1.