These are the prosperous townsfolk, among whom the Renaissance artist is but too glad to seek for models; but besides these there are lamentable sights, mediæval beyond words, at every street corner--dwarfs and cripples, maimed and diseased beggars of all degrees of loathsomeness, lepers and epileptics, and infinite numbers of monks, brown, grey and black, in sack-shaped frocks and pointed hoods, with shaven crown and cropped beard, emaciated with penance or bloated with gluttony. And all this the painter sees, daily, hourly; it is his standard of humanity, and as such finds its way into every picture. It is the living; but opposite it arises the dead. Let us turn aside from the crowd of the mediæval city, and look at what the workmen have just laid bare, or what the merchant has just brought from Rome or from Greece. Look at this: it is corroded by oxides, battered by ill-usage, stained with earth: it is not a group, not even a whole statue, it has neither head nor arms remaining; it is a mere broken fragment of antique sculpture,--a naked body with a fold or two of drapery; it is not by Phidias nor by Praxiteles, it may not even be Greek; it may be some cheap copy, made for a garden or a bath, in the days of Hadrian. But to the artist of the fifteenth century it is the revelation of a whole world, a world in itself. We can scarcely realize all this; but let us look and reflect, and even we may feel as must have felt the man of the Renaissance in the presence of that mutilated, stained, battered torso. He sees in that broken stump a grandeur of outline, a magnificence of osseous structure, a breadth of muscle and sinew, a smooth, firm covering of flesh, such as he would vainly seek in any of his living models; he sees a delicate and infinite variety of indentures, of projections, of creases following the bend of every limb; he sees, where the surface still exists intact, an elasticity of skin, a buoyancy of hidden life such as all the colours of his palette are unable to imitate; and in this piece of drapery, negligently gathered over the hips or robed upon the arm, he sees a magnificent alternation of large folds and small creases, of straight lines, and broken lines, and curves. He sees all this; but he sees more: the broken torso is, as we have said, not merely a world in itself, but the revelation of a world.