[100] The early Church has left us a treatise showing how thoroughly it recognised its duty in this respect. The "Pædagogue" or the "Instructor" of Clement of Alexandria is a handbook of the social life of the early Christians, teaching them what to do and wear and say under every conceivable circumstance. Clement thinks nothing too trivial for the rule of Christian principle, prescribing the kind of clothes, shoes, and beds which should be used. He may seem at times to border on the ludicrous in his minuteness; but then we cannot realise how profoundly paganism had corrupted human life and manners. Thus in Book III., ch. xi., he treats of the management of the hair by men. Paganism had introduced many sensual practices in this direction. Clement lays down: "Let the head of men be shaven, unless it has curly hair. But let the chin have the hair. But let not twisted locks hang far down from the head gliding into womanish ringlets.... Since cropping is to be adopted, not on account of elegance, but for the necessity of the case; the hair of the head, that it may not grow so long as to come down and interfere with the eyes, and that of the moustache similarly which is dirtied in eating, is to be cut round, not by a razor, for that were unbecoming, but by a pair of cropping scissors. But the hair on the chin is not to be disturbed, as it gives no trouble, and lends to the face dignity and paternal terror." This treatise of a very early Christian writer can be easily consulted in Clark's Ante-Nicene Library.