Abstract
Natural selection generated a natural sense of justice. This natural sense of justice created a set of natural rights; rights humans accorded to each other in virtue of being members of the same tribe. Sharing the responsibility for natural rights between all members of the same tribe allowed humans to take advantage of all opportunities for cooperation. Human rights are the present day political emanation of natural rights. Theoretically, human rights are accorded by all humans to all humans in virtue of being humans; however, the idea that the corresponding responsibility is now shared among all humans is not broadly accepted. The natural sense of justice creates an ambiguity: on the one hand humans consider the nation they belong to as the social system that should guarantee their human rights ; on the other hand, as cooperation between nations intensifies, expectations of global mutual responsibility increase as well.
