Obviously, for our purpose, which is to appreciate the spiritual endowment of the Middle Ages, it is essential to have cognizance of patristic thought. And in order to understand the mental processes of the Fathers, their attitude toward knowledge and their perception of fact, one must consider their intellectual environment; which was, of course, made up of the store of knowledge and philosophic interests prevailing in the Roman Empire. So we have to gauge the intellectual interests of the pagan world, first in the earlier times when thinkers were bringing together knowledge and philosophic concepts, and then in the later period when its accumulated and somewhat altered thought made the actual environment of the Church. * * * * * What race had ever a more genial appreciation of the facts of nature and of mortal life, than the Greeks? The older Greek philosophies had sprung from open and unprejudiced observation of the visible world. They were physical inquiries. With Socrates philosophy turned, as it were, from fact to truth, to a consideration of the validity of human understanding. Thereupon the Greek mind became entranced with its own creations. Man was the measure of all things, for the Sophists. More irrefragably and pregnantly, man became the measure of all things for Socrates and Plato. The aphorism might be discarded; but its transcendental import was established in an imaginative dialectic whose correspondence to the divinest splendours of the human mind warranted its truth. With Platonists--and the world was always to be filled with them--perceptions of physical facts and the data of human life and history, were henceforth to constitute the outer actuality of a creation within the mind. Every observed fact is an apparent tangibility; but its reality consists in its unison with the ultimate realities of rational conception. The apprehension of the fact must be made to conform to these. For this reason every fact has a secondary, nay, primary, because spiritual, meaning. Its true interpretation lies in that significance which accords with the mind’s consistent system of conceptions, which present the fact as it must be thought, and therefore as it is; it is the fact brought into right relationship with spiritual and ethical verity. Of course, methods of apprehending terrestrial and celestial phenomena as illustrations of ideally conceived principles, were unlikely to foster habits of close observation. The apparent facts of sense would probably be imaginatively treated if not transformed in the process of their apprehension. Nor, with respect to human story, would such methods draw fixed lines between the narration of what men are pleased to call the actual occurrence, and the shaping of a tale to meet the exigencies of argument or illustration.