“One problem for anyone like me who believes in a fixed human nature, including a fixed moral sense, is to explain how human behavior could have changed so radically over a few centuries or millennia. Much of the world has seen an end to slavery, to genocide for convenience, to torture as a routine form of criminal punishment, to capital punishment for property crimes, to human sacrifice, to rape as the spoils of war, to the ownership of women. We seem to be turning into a nicer species.” – Steven Pinker, The Seed Salon