There is one god, greatest among gods and men, who bears no similarity to humans either in shape or thought... but humans believe that the gods are born like themselves, and that the gods wear clothes and have bodies like humans and speak in the same way... but if cows and horses or lions had hands or could draw with the hands and manufacture the things humans can make, then horses would draw the forms of gods like horses, cows like cows, and they would make the gods' bodies resemble those which each kind of animal had itself.
XenophanesThe clear and perfect truth no man has seen, nor will there be anyone who knows about the gods and what I say about all things...; for, however perfect what he says may be, yet he does not know it; all things are matters of opinion.
Xenophanes