St. Hilary of Poitiers is one of the greatest, yet least studied, of the Fathers of the Western Church. He has suffered thus, partly from a certain obscurity in his style of writing, partly from the difficulty of the thoughts which he attempted to convey. But there are other reasons for the comparative neglect into which he has fallen. He learnt his theology, as we shall see, from Eastern authorities, and was not content to carry on and develop the traditional teaching of the West; and the disciple of Origen, who found his natural allies in the Cappadocian school of Basil and the Gregories An actual dependence on Gregory of Nyssa has sometimes been ascribed to Hilary. But Gregory was surely too young for this. He may himself have borrowed from Hilary; but more probably both derived their common element from Eastern writers like Basil of Ancyra., his juniors though they were, was speaking to somewhat unsympathetic ears. Again, his Latin tongue debarred him from influence in the East, and he suffered, like all Westerns, from that deep suspicion of Sabellianism which was rooted in the Eastern Churches. Nor are these the only reasons for the neglect of Hilary. Of his two chief works, the Homilies This is certainly the best translation of Tractatus; the word is discussed on a later page. on the Psalms, important as they were in popularising the allegorical method of interpretation, were soon outdone in favour by other commentaries; while his great controversial work on the Trinity suffered from its very perfection for the purpose with which it was composed. It seems, at first sight, to be not a refutation of Arianism, or of any particular phase of Arianism, but of one particular document, the Epistle of Arius to Alexander, in which Arian doctrines are expressed; and that a document which, in the constantly shifting phases of the controversy, soon fell into an oblivion which the work of Hilary has nearly shared. It is only incidentally constructive; its plan follows, in the central portion, that of the production of Arius which he was controverting, and this negative method must have lessened its popularity for purposes of practical instruction, and in competition with such a masterpiece as the De Trinitate of St. Augustine. And furthermore, Hilary never does himself justice. He was a great original thinker in the field of Christology, but he has never stated his views systematically and completely. They have to be laboriously reconstructed by the collection of passages scattered throughout his works; and though he is a thinker so consistent that little or no conjecture is needed for the piecing together of his system, yet we cannot be surprised full justice has never been done to him. He has been regarded chiefly as one of the sufferers from the violence of Constantius, as the composer of a useful conspectus of arguments against Arianism, as an unsuccessful negotiator for an understanding between the Eastern and Western Churches; but his sufferings were as nothing compared to those of Athanasius, while his influence in controversy seems to have been as small as the results of his diplomacy. It is not his practical share, in word or deed, in the conflicts of his day that is his chief title to fame, but his independence and depth as a Christian thinker. He has, indeed, exerted an important influence upon the growth of doctrine, but it has been through the adoption of his views by Augustine and Ambrose; and many who have profited by his thoughts have never known who was their author.