Pope John XXIII
Pacem in Terris §145
Pacem in Terris: On Establishing Universal Peace in Truth, Justice, Charity, and Liberty
145 It is therefore Our earnest wish that the United Nations Organization may be able progressively to adapt its structure and methods of operation to the magnitude and nobility of its tasks. May the day be not long delayed when every human being can find in this organization an effective safeguard of his personal rights; those rights, that is, which derive directly from his dignity as a human person, and which are therefore universal, inviolable and inalienable. This is all the more desirable in that men today are taking an ever more active part in the public life of their own nations, and in doing so they are showing an increased interest in the affairs of all peoples. They are becoming more and more conscious of being living members of the universal family of mankind.
Source: Pacem in Terris (Vatican.va)