We now approach the period in which Alexandria began to have a philosophy of its own--to be, indeed, the leader of human thought for several centuries.
I shall enter on this branch of my subject with some fear and trembling;not only on account of my own ignorance, but on account of the great difficulty of handling it without trenching on certain controversial subjects which are rightly and wisely forbidden here. For there was not one school of Metaphysic at Alexandria: there were two; which, during the whole period of their existence, were in internecine struggle with each other, and yet mutually borrowing from each other; the Heathen, namely, and the Christian. And you cannot contemplate, still less can you understand, the one without the other. Some of late years have become all but unaware of the existence of that Christian school; and the word Philosophy, on the authority of Gibbon, who, however excellent an authority for facts, knew nothing about Philosophy, and cared less, has been used exclusively to express heathen thought; a misnomer which in Alexandria would have astonished Plotinus or Hypatia as much as it would Clement or Origen. I do not say that there is, or ought to be, a Christian Metaphysic. I am speaking, as you know, merely as a historian, dealing with facts; and I say that there was one; as profound, as scientific, as severe, as that of the Pagan Neoplatonists;starting indeed, as I shall show hereafter, on many points from common ground with theirs. One can hardly doubt, I should fancy, that many parts of St. John's Gospel and Epistles, whatever view we may take of them, if they are to be called anything, are to be called metaphysic and philosophic. And one can no more doubt that before writing them he had studied Philo, and was expanding Philo's thought in the direction which seemed fit to him, than we can doubt it of the earlier Neoplatonists.
The technical language is often identical; so are the primary ideas from which he starts, howsoever widely the conclusions may differ. If Plotinus considered himself an intellectual disciple of Plato, so did Origen and Clemens. And I must, as I said before, speak of both, or of neither. My only hope of escaping delicate ground lies in the curious fact, that rightly or wrongly, the form in which Christianity presented itself to the old Alexandrian thinkers was so utterly different from the popular conception of it in modern England, that one may very likely be able to tell what little one knows about it, almost without mentioning a single doctrine which now influences the religious world.
But far greater is my fear, that to a modern British auditory, trained in the school of Locke, much of ancient thought, heathen as well as Christian, may seem so utterly the product of the imagination, so utterly without any corresponding reality in the universe, as to look like mere unintelligible madness. Still, I must try; only entreating my hearers to consider, that how much soever we may honour Locke and his great Scotch followers, we are not bound to believe them either infallible, or altogether world-embracing; that there have been other methods than theirs of conceiving the Unseen; that the common ground from which both Christian and heathen Alexandrians start, is not merely a private vagary of their own, but one which has been accepted undoubtingly, under so many various forms, by so many different races, as to give something of an inductive probability that it is not a mere dream, but may be a right and true instinct of the human mind. I mean the belief that the things which we see--nature and all her phenomena--are temporal, and born only to die; mere shadows of some unseen realities, from whom their laws and life are derived; while the eternal things which subsist without growth, decay, or change, the only real, only truly existing things, in short, are certain things which are not seen; inappreciable by sense, or understanding, or imagination, perceived only by the conscience and the reason. And that, again, the problem of philosophy, the highest good for man, that for the sake of which death were a gain, without which life is worthless, a drudgery, a degradation, a failure, and a ruin, is to discover what those unseen eternal things are, to know them, possess them, be in harmony with them, and thereby alone to rise to any real and solid power, or safety, or nobleness. It is a strange dream. But you will see that it is one which does not bear much upon "points of controversy," any more than on "Locke's philosophy;" nevertheless, when we find this same strange dream arising, apparently without intercommunion of thought, among the old Hindoos, among the Greeks, among the Jews; and lastly, when we see it springing again in the Middle Age, in the mind of the almost forgotten author of the "Deutsche Theologie," and so becoming the parent, not merely of Luther's deepest belief, or of the German mystic schools of the seventeenth and eighteenth centuries, but of the great German Philosophy itself as developed by Kant, and Fichte, and Schelling, and Hegel, we must at least confess it to be a popular delusion, if nothing better, vast enough and common enough to be worth a little patient investigation, wheresoever we may find it stirring the human mind.
