From a recent interview with Steven Pinker: "In The Blank Slate I argue that Homo sapiens has much to be modest about. We are prone, to varying degrees and in various circumstances, to ethnocentrism, violence, adultery, ambition, superstition, and self-deception, among other vices. Take the kin-selected limits on altruism, which tempt us to form dynasties, hire our relatives, spend money on luxuries for our children (orthodontics, summer camp, expensive educations) that we could have used to save the lives of unrelated children in the developing world, and bequeath our estates to our heirs—one of the biggest impediments to economic equality. Unjust, perhaps. But our close relatives have a special place in our hearts because the place for everyone else is, by definition, less special. Would we really be better off if our relationships with our parents, siblings, and children were not uniquely precious? Or take romantic love, with all its perfidy and heartbreak. Donald Symons has pointed out that if people belonged to a species in which each couple was marooned on an island for life, the absence of romantic rivals would not select for lifelong bliss; it would select for no consciousness at all. There would be no falling in love because there would be no alternative mates to select from, and falling in love would be a huge waste. Nor would there be pleasure in sex, which would be done for reproduction and would provide no more feeling than the release of hormones or the production of gametes. The richness and intensity of the emotions in our minds are evolutionary testimony to the preciousness and fragility of our relationships in life."