I don't quite mean that the golden rule itself is written in our genes, but you can go to a hunter gatherer society that has had no exposure to any of the great religious traditions, no exposure to ethical philosophy, and you'll find, if you spend time with these people, that, basically, they believe that one good turn deserves another, and that bad deeds should be punished.
Nu afirm neaparat ca regula de aur e inscrisa in gene, dar poti merge intr-un trib de vanatori-culegatori care n-au fost expusi niciuneia din marile traditii religioase, niciunei etici filozofice, si veti descoperi, daca veti petrece timp cu acesti oameni, ca, in principiu, ei cred ca o fapta buna merita o alta fapta buna, si ca faptele rele ar trebui pedepsite.