Where does man learn virtue? He learns it from that sense of shame. And what develops virtue in man? It is again the same sense. Often this sense works as a sharp knife upon a feeling heart, but it only makes it a cut diamond. By this we come to a realization that what is most precious in life is feeling. And if the feeling sense loses its sharpness, it is as if man, who is the salt of the earth, has lost savor; and there is nothing else from where it can be gained. In all times of the world's history whenever a civilization had touched its summits, this sense was developed in the generality. For the heights of every civilization show the fineness of human feeling, which is the highest of all aspects of culture.