"Rather painfully, we managed to digest Darwinian evolution so far as physical attributes were concerned within half a century of the initial controversy. (I say “we,” but if you’re a Bible-thumping fundamentalist I expect you at this point to take the book by one corner at arm’s length and ceremonially consign it to the place where you put most sensible ideas, along with everything else you decline to acknowledge the existence of, such as mainly shit.)"