I consider the worst possible things that humans can perpetrate : Genocide Murder Pedophilia Rape Incest It seems, however, that not all societies have the above as taboo. Infanticide, genocide and murder have all been recorded as acceptable in some Papua New Guinea tribes by Jared Diamond. Tutelage of children in sexual practice by their relatives has been recorded as having been acceptable in some South Pacific island societies by Captain Cook and Captain Bligh during the late 18th and early 19th centuries. Incest has been recorded as both common and acceptable in Egyptian and Roman (imperial) societies. There are examples in previous centuries where rape was not considered a terrible crime. Is condemning practitioners of the above “outrages” (as I personally would) merely cultural arrogance? Are there actually any morals that are fundamental to humanity? If so, what are they? Peace.