Pattylt:
I’m not one to worry much about where morality ultimately lies. It seems that all normally developed people have an innate sense of morality. You can claim it comes from God and I can claim it is an evolutionary trait…but excluding those that have pathologies, we all posses it.
I suspect this all depends on how you define pathology. If it is simply abnormal behavior, then walking around with your body dyed green would be no more pathological than committing murder. If you mean it to signify moral misbehavior then you would have to explain why your moral system is right and the murderer’s system is wrong, and that can only be done by reference to a moral system that is objectively true.