35 On the basis of these broad considerations, we must now explore more directly the relationship between revealed truth and philosophy. This relationship imposes a twofold consideration, since the truth conferred by Revelation is a truth to be understood in the light of reason. It is this duality alone which allows us to specify correctly the relationship between revealed truth and philosophical learning. First, then, let us consider the links between faith and philosophy in the course of history. From this, certain principles will emerge as useful reference-points in the attempt to establish the correct link between the two orders of knowledge.
Source: Fides et Ratio (Vatican.va)