104 Here surely is our proof that, in defining the scope of a just freedom within which individual citizens may live lives worthy of their human dignity, the rulers of some nations have been far too restrictive. Sometimes in States of this kind the very right to freedom is called in question, and even flatly denied. We have here a complete reversal of the right order of society, for the whole raison d'etre of public authority is to safeguard the interests of the community. Its sovereign duty is to recognize the noble realm of freedom and protect its rights.
Source: Pacem in Terris (Vatican.va)