 Xenophanes famously insists that all conceptions of the gods are anthropomorphic and culturally contingent (DK 21B14, B15). The Ethiopians pray to gods who look like Ethiopians, the Thracians to gods who look like Thracians (B16). If horses and cows had hands, the horses would draw pictures of gods that look like horses, and the cows would draw gods as cows (B15). Xenophanes puts forward a number of theological theses of his own. But he says that no man will know the clear truth about such matters. He makes a point that has lasting relevance in discussions of skepticism: even if someone succeeded in saying something that actually is the case, he himself would not know this. Thus, all is belief (120: B34) (cf. Sassi 2011 on interpretations of Xenophanes that influence the history of skepticism).