105 In concluding this Encyclical Letter, my thoughts turn particularly to theologians , encouraging them to pay special attention to the philosophical implications of the word of God and to be sure to reflect in their work all the speculative and practical breadth of the science of theology. I wish to thank them for their service to the Church. The intimate bond between theological and philosophical wisdom is one of the Christian tradition's most distinctive treasures in the exploration of revealed truth. This is why I urge them to recover and express to the full the metaphysical dimension of truth in order to enter into a demanding critical dialogue with both contemporary philosophical thought and with the philosophical tradition in all its aspects, whether consonant with the word of God or not. Let theologians always remember the words of that great master of thought and spirituality, Saint Bonaventure, who in introducing his Itinerarium Mentis in Deum invites the reader to recognize the inadequacy of “reading without repentance, knowledge without devotion, research without the impulse of wonder, prudence without the ability to surrender to joy, action divorced from religion, learning sundered from love, intelligence without humility, study unsustained by divine grace, thought without the wisdom inspired by God”. I am thinking too of those responsible for priestly formation , whether academic or pastoral. I encourage them to pay special attention to the philosophical preparation of those who will proclaim the Gospel to the men and women of today and, even more, of those who will devote themselves to theological research and teaching. They must make every effort to carry out their work in the light of the directives laid down by the Second Vatican Council and subsequent legislation, which speak clearly of the urgent and binding obligation, incumbent on all, to contribute to a genuine and profound communication of the truths of the faith. The grave responsibility to provide for the appropriate training of those charged with teaching philosophy both in seminaries and ecclesiastical faculties must not be neglected. Teaching in this field necessarily entails a suitable scholarly preparation, a systematic presentation of the great heritage of the Christian tradition and due discernment in the light of the current needs of the Church and the world.
Source: Fides et Ratio (Vatican.va)