a pantheistic aspect [196] among a "group of priestly thinkers," and in others took the form of an ideal theocracy. [197] There is record that the Babylonian schools were divided into different sects, [198] and their science was likely to make some of these rationalistic. [199] Professor Sayce even goes so far as to say that in the later cosmogony, "under a thin disguise of theological nomenclature, the Babylonian theory of the universe has become a philosophical materialism." [200] It might be taken for granted, further, that disbelief would be set up by such a primitive fraud as the alleged pretence of the priests of Bel Merodach that the God cohabited nightly with the concubine set apart for him (Herodotos, i, 181-82), as was similarly pretended by the priests of Amun at Thebes. Herodotos could not believe the story, which, indeed, is probably a late Greek fable; but there must have been some skeptics within the sphere of the Semitic cult of sacred prostitution. As regards freethinking in general, much would depend on the development of the Chaldæan astronomy. That science, growing out of primitive astrology (cp. Whewell, Hist. of the Induct. Sciences, 3rd ed. i, 108), would tend to discredit, among its experts, much of the prevailing religious thought; and they seem to have carried it so far as to frame a scientific theory of comets (Seneca, citing Apollonius Myndius, Quaest. Nat., vii, 3; cp. Lib. Use. Kn. Hist. of Astron., c. 3; E. Meyer, Gesch. des Alterthums, i, 186; and Weber, Ind. Lit., p. 248). Such knowledge would greatly favour skepticism, as well as monotheism and pantheism. It was sought to be astrologically applied; but, as the horoscopes varied, this was again a source of unbelief (Meyer, p. 179). Medicine, again, made little progress (Herod., i, 197). It can hardly be doubted, finally, that in Babylonia and Assyria there were idealists who, like the Hebrew prophets, repudiated alike image-worship and the religion of sacrifices. The latter repudiation occurs frequently in later Greece and Rome. There, as in Jerusalem, it could make itself heard in virtue of the restrictedness of the power of the priests, who in imperial Babylonia and Assyria, on the other hand, might be trusted to suppress or override any such propaganda, as we have seen was done in Brahmanical India. Concerning image-worship, apart from the proved fact of pantheistic doctrine, and the parallels in Egypt and India, it is to be noted that Isaiah actually puts in the mouth of the Assyrian king a tirade against the "kingdoms of the idols" or "false gods," including in these Jerusalem and Samaria (Isa. x, 10, 11). The passage is dramatic, but it points to the possibility that in Assyria just as in Israel a disbelief in idols could arise from reflection on the spectacle of their multitude.