The Fine Arts are always an expression of the historical antecedents, the intellectual, moral, and material conditions, and the religious beliefs of the peoples and epochs to which they belong. They derive their whole character from these antecedents and conditions, and cannot be rightly understood or appreciated without reference to them. Thus a brief consideration of these conditions in the Middle Ages on the one hand, and in the period of the Renaissance on the other, may help us to understand the nature of the above-mentioned change, and to gain a more discriminating appreciation of the real character of the artistic productions of the latter epoch. During the Middle Ages ideas and imagination were governed by a religious faith which, though in many ways mistaken and misguided, was for the most part firm and unquestioning. Mediæval Christianity was a living power with the masses, and an inspiration to men of genius. The mediæval Christian mythology was well fitted to stimulate artistic invention, and the ideals which it maintained were full of beauty. It is true, indeed, that human conduct was not wholly governed by this faith; but the precepts of the Christian religion, as defined and interpreted by the Roman church, were generally held as of supreme authority, and to them most people acknowledged that they ought to conform. This Christianity gave the chief motive power for the best activities of the time, and the social relations of men were, in theory at least, based upon its teachings. The history of the Middle Ages abounds in evidence that popular habits of life were in many ways exemplary. Villani tells us that the citizens of Florence lived in sobriety and frugality, that they had loyal hearts, were faithful to one another, and that they required the same fidelity in the administration of public affairs.[1] Florence in the fourteenth century was alive with industry, and the open country around the city was prosperous with agriculture. Of such conditions her Fine Arts were an outgrowth and expression. But the mediæval faith began at length to weaken. The church, as an ecclesiastical establishment, had grown corrupt and oppressive, so that men of spirit were moved to reject its dogmas and to resist its intellectual tyranny. Independent thought began to widen the range of ideas, and the reading of ancient authors gave a fresh incentive to philosophical speculation, and awakened a spirit of scientific investigation, as well as a taste for ancient poetry and mythology. The desire for intellectual freedom, and the thirst for new knowledge, which were thus stimulated in the fifteenth century constitute the good side of the Renaissance movement, the side which has hitherto been most emphasized by writers, and to which the modern world is indebted for a strong stimulus in the direction of some of its most fruitful activities.