23 God created men as brothers, not foes. He gave them the earth to be cultivated by their toil and labor. Each and every man is to enjoy the fruits of the earth and receive from it his sustenance and the necessities of life. The various nations are simply communities of men, that is, of brothers. They are to work in brotherly cooperation for the common prosperity of human society, not simply for their own particular goals.
Source: Ad Petri Cathedram (Vatican.va)