A more felicitous embodiment of modern feeling was achieved by Donatello in "S. George" and "David." The former is a marble statue placed upon the north wall of Orsammichele; the latter is a bronze, cast for Cosimo de' Medici, and now exhibited in the Bargello.[89] Without striving to idealise his models, the sculptor has expressed in both the Christian conception of heroism, fearless in the face of danger, and sustained by faith. The naked beauty of the boy David and the mailed manhood of S. George are raised to a spiritual region by the type of feature and the pose of body selected to interpret their animating impulse. These are no mere portraits of wrestlers, such, as peopled the groves of Altis at Olympia, no ideals of physical strength translated into brass and marble, like the "Hercules" of Naples or the Vatican. The one is a Christian soldier ready to engage Apollyon in battle to the death; the other the boy-hero of a marvellous romance. The body in both is but the shrine of an indwelling soul, the instrument and agent of a faith-directed will; and the crown of their conflict is no wreath of laurel or of parsley. In other words, the value of S. George and David to the sculptor lay not in their strength and youthful beauty--though he has endowed them with these excellent gifts--so much as in their significance for the eternal struggle of the soul with evil. The same power of expressing Christian sentiment in a form of perfect beauty, transcending the Greek type by profounder suggestion of feeling, is illustrated in the well-known low-relief of an angel's head in profile, technically one of Donatello's most masterly productions.[90]