From Pope St. John Paul II’s encyclical Fides et Ratio (1984):
If it has been necessary from time to time to intervene on this question, to reiterate the value of the Angelic Doctor’s insights and insist on the study of his thought, this has been because the Magisterium’s directives have not always been followed with the readiness one would wish. In the years after the Second Vatican Council, many Catholic faculties were in some ways impoverished by a diminished sense of the importance of the study not just of Scholastic philosophy but more generally of the study of philosophy itself. I cannot fail to note with surprise and displeasure that this lack of interest in the study of philosophy is shared by not a few theologians.
There are various reasons for this disenchantment. First, there is the distrust of reason found in much contemporary philosophy, which has largely abandoned metaphysical study of the ultimate human questions in order to concentrate upon problems which are more detailed and restricted, at times even purely formal. Another reason, it should be said, is the misunderstanding which has arisen especially with regard to the “human sciences”. On a number of occasions, the Second Vatican Council stressed the positive value of scientific research for a deeper knowledge of the mystery of the human being.85 But the invitation addressed to theologians to engage the human sciences and apply them properly in their enquiries should not be interpreted as an implicit authorization to marginalize philosophy or to put something else in its place in pastoral formation and in the præparatio fidei. A further factor is the renewed interest in the inculturation of faith. The life of the young Churches in particular has brought to light, together with sophisticated modes of thinking, an array of expressions of popular wisdom; and this constitutes a genuine cultural wealth of traditions. Yet the study of traditional ways must go hand in hand with philosophical enquiry, an enquiry which will allow the positive traits of popular wisdom to emerge and forge the necessary link with the proclamation of the Gospel.86
85 Cf. Pastoral Constitution on the Church in the Modern World Gaudium et Spes, 57; 62.
86 Cf. ibid., 44.
— Fides et Ratio 61