7 These laws clearly indicate how a man must behave toward his fellows in society, and how the mutual relationships between the members of a State and its officials are to be conducted. They show too what principles must govern the relations between States; and finally, what should be the relations between individuals or States on the one hand, and the world-wide community of nations on the other. Men's common interests make it imperative that at long last a world-wide community of nations be established.
Source: Pacem in Terris (Vatican.va)