"Our intuitions are systematically biased. Evolutionary psychology explains how our moral intuitions and the rationalizations they spawn have been shaped by millennia of natural selection to maximize the inclusive fitness of our genes and not to track the welfare of other sentient beings impartially conceived."
David Pearce, Post-Darwinian Ethics (http://www.hplusmagazine.com/articles/bio/post-darwinian-ethics)
