Dante comes between the two, and differs more widely from each of them than they from one another. They are primarily poets. He is primarily a moralist who is also a poet. Of Homer the man, and of Shakespeare the man, we know, and need to know, nothing; it is only with them as poets that we are concerned. But it is needful to know Dante as man, in order fully to appreciate him as poet. He gives us his world not as reflection from an unconscious and indifferent mirror, but as from a mirror that shapes and orders its reflections for a definite end beyond that of art, and extraneous to it. And in this lies the secret of Dante's hold upon so many and so various minds. He is the chief poet of man as a moral being.
To understand aright the work of any great poet we must know the conditions of his times; but this is not enough in the case of Dante. We must know not only the conditions of the generation to which he belonged, we must also know the specific conditions which shaped him into the man he was, and differentiated him from his fellows. How came he, endowed with a poetic imagination which puts him in the same class with Homer and Shakespeare, not to be content, like them, to give us a simple view of the phantasmagoria of life, but eager to use the fleeting images as instruments by which to enforce the lesson of righteousness, to set forth a theory of existence and a scheme of the universe?
The question cannot be answered without a consideration of the change wrought in the life and thoughts of men in Europe by the Christian doctrine as expounded and enforced by the Roman Church, and of the simultaneous changes in outward conditions resulting from the destruction of the ancient civilization, and the slow evolution of the modern world as it rose from the ruins of the old. The period which immediately preceded and followed the fall of the Roman Empire was too disorderly, confused, and broken for men during its course to be conscious of the directions in which they were treading. Century after century passed without settled institutions, without orderly language, without literature, without art. But institutions, languages, literature and art were germinating, and before the end of the eleventh century clear signs of a new civilization were manifest in Western Europe. The nations, distinguished by differences of race and history, were settling down within definite geographical limits; the various languages were shaping themselves for the uses of intercourse and of literature; institutions accommodated to actual needs were growing strong; here and there the social order was becoming comparatively tranquil and secure. Progress once begun became rapid, and the twelfth century is one of the most splendid periods of the intellectual life of man expressing itself in an infinite variety of noble and attractive forms. These new conditions were most strongly marked in France: in Provence at the South, and in and around the Île de France at the North; and from both these regions a quickening influence diffused itself eastward into Italy.