Whence, O Plato, is that hint of the truth which thou givest? Whence this rich copiousness of diction, which proclaims piety with oracular utterance? The tribes of the barbarians, he says, are wiser than these; I know thy teachers, even if thou wouldst conceal them. You have learned geometry from the Egyptians, astronomy from the Babylonians; the charms of healing you have got from the Thracians; the Assyrians also have taught you many things; but for the laws that are consistent with truth, and your sentiments respecting God, you are indebted to the Hebrews,