From Pope St. John Paul II’s encyclical Veritatis Splendor (1993):
According to the opinion of some theologians, the function of conscience had been reduced, at least at a certain period in the past, to a simple application of general moral norms to individual cases in the life of the person. But those norms, they continue, cannot be expected to foresee and to respect all the individual concrete acts of the person in all their uniqueness and particularity. While such norms might somehow be useful for a correct assessment of the situation, they cannot replace the individual personal decision on how to act in particular cases. The critique already mentioned of the traditional understanding of human nature and of its importance for the moral life has even led certain authors to state that these norms are not so much a binding objective criterion for judgments of conscience, but a general perspective which helps man tentatively to put order into his personal and social life. These authors also stress the complexity typical of the phenomenon of conscience, a complexity profoundly related to the whole sphere of psychology and the emotions, and to the numerous influences exerted by the individual’s social and cultural environment. On the other hand, they give maximum attention to the value of conscience, which the Council itself defined as “the sanctuary of man, where he is alone with God whose voice echoes within him”.102 This voice, it is said, leads man not so much to a meticulous observance of universal norms as to a creative and responsible acceptance of the personal tasks entrusted to him by God.
In their desire to emphasize the “creative” character of conscience, certain authors no longer call its actions “judgments” but “decisions”: only by making these decisions “autonomously” would man be able to attain moral maturity. Some even hold that this process of maturing is inhibited by the excessively categorical position adopted by the Church’s Magisterium in many moral questions; for them, the Church’s interventions are the cause of unnecessary conflicts of conscience.
102 Pastoral Constitution on the Church in the Modern World Gaudium et Spes, 16.
— Veritatis Splendor 55