§ 1882 Certain societies, such as the family and the state, correspond more directly to the nature of man; they are necessary to him.
§ 1883 Excessive intervention by the state can threaten personal freedom and initiative. The teaching of the Church has elaborated the principle of subsidiarity, according to which “a community of a higher order should not interfere in the internal life of a community of a lower order, depriving the latter of its functions, but rather should support it in case of need and help to co- ordinate its activity with the activities of the rest of society, always with a view to the common good.”
§ 1885 The principle of subsidiarity is opposed to all forms of collectivism. It sets limits for state intervention. It aims at harmonizing the relationships between individuals and societies. It tends toward the establishment of true international order.
§ 1897 “Human society can be neither well-ordered nor prosperous unless it has some people invested with legitimate authority to preserve its institutions and to devote themselves as far as is necessary to work and care for the good of all.”
By “authority” one means the quality by virtue of which persons or institutions make laws and give orders to men and expect obedience from them.
§ 1900 The duty of obedience requires all to give due honor to authority and to treat those who are charged to exercise it with respect, and, insofar as it is deserved, with gratitude and good-will.
§ 1902 Authority does not derive its moral legitimacy from itself. It must not behave in a despotic manner, but must act for the common good as a “moral force based on freedom and a sense of responsibility”.
§ 2245 The Church, because of her commission and competence, is not to be confused in any way with the political community. She is both the sign and the safeguard of the transcendent character of the human person. “The Church respects and encourages the political freedom and responsibility of the citizen.”
§ 2246 It is a part of the Church’s mission “to pass moral judgments even in matters related to politics, whenever the fundamental rights of man or the salvation of souls requires it. The means, the only means, she may use are those which are in accord with the Gospel and the welfare of all men according to the diversity of times and circumstances.”