Magnifica Humanitas §33

³³ A new phase in the Church’s social teaching began with Saint John XXIII , who placed a greater emphasis on the global dimension of social issues and the language of rights. In Mater et Magistra , he presented the Christian faith as a light capable of uniting heaven and earth. He recalled that, while the Church’s primary mission is the sanctification and proclamation of eternal goods, she does not neglect the concrete needs of people’s daily lives, and is concerned with every authentic human good. Based on this unified vision of humanity, John XXIII emphasized that societal life requires a balance between the initiative of citizens and groups — who are called to organize themselves and work together — and the action of the State, which must coordinate and provide support without stifling the freedom and responsibility of individuals. Hence, he drew attention to fair remuneration for work, worker participation and the growing disparities between countries. A few years later, in Pacem in Terris , John XXIII addressed for the first time not only the faithful, but also all people of good will, organically linking the dignity of the person to the recognition of fundamental rights and duties, and proposing a direction for society — at the international level too — based on truth, justice, love and freedom. In the present day, which is marked by widespread conflict and new forms of global interdependence, the following aspects of his thought remain particularly significant: the universal perspective of his appeal; his reference to human rights as a shared framework; and his conviction that lasting peace requires institutions and relations between peoples that are inspired by the dignity of every person.