Natural rights. Behaviours which can be universally shared between all individuals. For example: Murder, theft, assault, and rape are all examples of property violations which we can not prefer for ourselves.

What do you mean by "behaviors which can be universally shared?" That is, are you assuming that people universally do not want to be murdered, so there's a right not to be murdered? If so, isn't that essentially a mandate due to popular opinion?

By the way do you realize that in certain cultures people considered being sacrificed to be an honor? And in other cultures there is no concept of ownership at all, so property rights and the right not to be killed are, in fact, not universal. These things are derived from majority consensus in our culture, in exactly the same way government authority is.