And so of other sciences: just as Comparative Anatomy, Political Economy, the Philosophy of History, and the Science of Antiquities may be and are turned against Religion, by being taken by themselves, as I have been showing, so a like mistake may befall any other. Grammar, for instance, at first sight does not appear to admit of a perversion; yet Horne Tooke made it the vehicle of his peculiar scepticism. Law would seem to have enough to do with its own clients, and their affairs; and yet Mr. Bentham made a treatise on Judicial Proofs a covert attack upon the miracles of Revelation. And in like manner Physiology may deny moral evil and human responsibility; Geology may deny Moses; and Logic may deny the Holy Trinity;(12) and other sciences, now rising into notice, are or will be victims of a similar abuse. 14. And now to sum up what I have been saying in a few words. My object, it is plain, has been—not to show that Secular Science in its various departments may take up a position hostile to Theology;—this is rather the basis of the objection with which I opened this Discourse;—but to point out the cause of an hostility to which all parties will bear witness. I have been insisting then on this, that the hostility in question, when it occurs, is coincident with an evident deflection or exorbitance of Science from its proper course; and that this exorbitance is sure to take place, almost from the necessity of the case, if Theology be not present to defend its own boundaries and to hinder the encroachment. The human mind cannot keep from speculating and systematizing; and if Theology is not allowed to occupy its own territory, adjacent sciences, nay, sciences which are quite foreign to Theology, will take possession of it. And this occupation is proved to be a usurpation by this circumstance, that these foreign sciences will assume certain principles as true, and act upon them, which they neither have authority to lay down themselves, nor appeal to any other higher science to lay down for them. For example, it is a mere unwarranted assumption if the Antiquarian says, “Nothing has ever taken place but is to be found in historical documents;” or if the Philosophic Historian says, “There is nothing in Judaism different from other political institutions;” or if the Anatomist, “There is no soul beyond the brain;” or if the Political Economist, “Easy circumstances make men virtuous.” These are enunciations, not of Science, but of Private Judgment; and it is Private Judgment that infects every science which it touches with a hostility to Theology, a hostility which properly attaches to no science in itself whatever.