"All men, in virtue of their humanity, are image-makers, but in some the image is clear and vivid, in others dull, lifeless, wavering. The Greeks were the supreme ikonists, the greatest image-makers the world has ever seen, and, therefore, their mythology lives on to-day. The genius of Rome was not for ikonism; their mythology, save when they borrow from the Greeks, is negligible. They worshipped not gods, not dei, but powers, numina. These numina...