> But at a level above law, what is the authority that determines that killing people is absolutely wrong and not just personally repugnant to the majority of t

> But at a level above law, what is the authority that determines that killing people is absolutely wrong and not just personally repugnant to the majority of the world's population? I believe that you can strongly believe that witches should be killed and also know that you shouldn't do it, without having to subscribe to some universalising authority that tells you what to believe. Generally speaking, people should act on their strong beliefs, but they need to do so aware of the fact that any one of their strong beliefs could be wrong. When it comes to something as serious and permanent as killing, then you should know that even a small chance of your strong belief being wrong is unacceptable and strong belief is therefore not a sufficient reason to do such a thing.