46 The Church values the democratic system inasmuch as it ensures the participation of citizens in making political choices, guarantees to the governed the possibility both of electing and holding accountable those who govern them, and of replacing them through peaceful means when appropriate. Thus she cannot encourage the formation of narrow ruling groups which usurp the power of the State for individual interests or for ideological ends. Authentic democracy is possible only in a State ruled by law, and on the basis of a correct conception of the human person. It requires that the necessary conditions be present for the advancement both of the individual through education and formation in true ideals, and of the "subjectivity" of society through the creation of structures of participation and shared responsibility. Nowadays there is a tendency to claim that agnosticism and sceptical relativism are the philosophy and the basic attitude which correspond to democratic forms of political life. Those who are convinced that they know the truth and firmly adhere to it are considered unreliable from a democratic point of view, since they do not accept that truth is determined by the majority, or that it is subject to variation according to different political trends. It must be observed in this regard that if there is no ultimate truth to guide and direct political activity, then ideas and convictions can easily be manipulated for reasons of power. As history demonstrates, a democracy without values easily turns into open or thinly disguised totalitarianism. Nor does the Church close her eyes to the danger of fanaticism or fundamentalism among those who, in the name of an ideology which purports to be scientific or religious, claim the right to impose on others their own concept of what is true and good. Christian truth is not of this kind. Since it is not an ideology, the Christian faith does not presume to imprison changing socio-political realities in a rigid schema, and it recognizes that human life is realized in history in conditions that are diverse and imperfect. Furthermore, in constantly reaffirming the transcendent dignity of the person, the Church's method is always that of respect for freedom. But freedom attains its full development only by accepting the truth. In a world without truth, freedom loses its foundation and man is exposed to the violence of passion and to manipulation, both open and hidden. The Christian upholds freedom and serves it, constantly offering to others the truth which he has known (cf. Jn 8:31-32), in accordance with the missionary nature of his vocation. While paying heed to every fragment of truth which he encounters in the life experience and in the culture of individuals and of nations, he will not fail to affirm in dialogue with others all that his faith and the correct use of reason have enabled him to understand.
Source: Centesimus Annus (Vatican.va)