Let them leave us Homer, however, and on the rank and file of facts they may do their worst; we can be indifferent to, or even thankful for, what slaughter they may make. In the legends of the Theogonia, in that of Zeus and Cronus, for instance, there is evidently a metaphysical allegory; in the legends of Persephone, or of the Dioscuri, a physical one; in that of Athene, a profoundly philosophical one; and fused as the entire system was in the intensely poetical conception of the early thinkers, it would be impossible, even if it were desirable, at this time of day, to disentangle the fibres of all these various elements. Fact and theory, the natural and the supernatural, the legendary and the philosophical, shade off so imperceptibly one into the other, in the stories of the Olympians, or of their first offspring, that we can never assure ourselves that we are on historic ground, or that, antecedent to the really historic age, there is any such ground to be found anywhere. The old notion, that the heroes were deified men, is no longer tenable. With but few exceptions, we can trace their names as the names of the old gods of the Hellenic or Pelasgian races; and if they appeared later in human forms, they descended from Olympus to assume them. Diomed was the OEtolian sun-god; Achilles was worshipped in Thessaly long before he became the hero of the tale of Troy. The tragedy of the house of Atreus, and the bloody bath of Agamemnon, as we are now told with appearance of certainty,[Y] are humanised stories of the physical struggle of the opposing principles of life and death, light and darkness, night and day, winter and summer.