Pius XII on State Sovereignty and Migration
August 1, 1952
The natural law itself, no less than devotion to humanity, urges that ways of migration be opened to these people [who have been forced from their homes]. For the Creator of the universe made all good things primarily for the good of all. Since land everywhere offers the possibility of supporting a large number of people, the sovereignty of the State, although it must be respected, cannot be exaggerated to the point that access to this land is, for inadequate or unjustified reasons, denied to needy and decent people from other nations, provided of course, that the public wealth, considered very carefully, does not forbid this.