"I was disillusioned — my romantic idea of culture as a sort of bridge that brings different folks together lay shattered. I realized that, in a way that is similar to what we see with empathy and fairness regarding ingroups and outgroups, we empathise with and seek fairness mainly for those in our own tribe. There are two sides to these coins — even culture has a dark side" (daqui; ler tambám aqui)