Had Meles still been alive, and had I met him in person, I would have given him Frans de Waal's Our Inner Ape so that he would realize the economic model he proposed in his doctoral thesis, Dead Ends and New Beginnings, has a substantial biological and evolutionary basis.

Modern religions are only a few thousand years old. It's hard to imagine that human psychology was radically different before religions arose. It's not that religion and culture don't have a role to play, but the building blocks of morality clearly predate humanity.

Our Inner Ape, Frans De Waal