[10.] Yet, if any one wished to learn military affairs, of necessity he must learn the military laws. And if any one sought to learn navigation or carpentry or anything else, of necessity he must learn the [principles] of the art. But in this case they will not do anything of the kind, although this is a science which needs much wakeful attention. For that it too is an art which needs teaching, hear the prophet saying, “Come, ye children, hearken unto me, I will teach you the fear of the Lord.” ( Ps. xxxiv. 11.) It follows therefore certainly that the fear of God needs teaching. Then he says, “What man is he that desireth life?” ( Ps. xxxiv. 12.) He means the life yonder; and again, “Keep thy tongue from evil and thy lips from speaking guile; de part from evil and do good, seek peace and pursue it.” ( Ps. xxxiv. 13, 14.)