It was and is the merit of the Enlightenment to have again proposed these original values of Christianity and of having given back to reason its own voice. In the pastoral constitution, On the Church in the Modern World, Vatican Council II underlined again this profound correspondence between Christianity and the Enlightenment, seeking to come to a true conciliation between the Church and modernity, which is the great heritage that both sides must defend.
Given all this, it is necessary that both sides engage in self-reflection and be willing to correct themselves. Christianity must always remember that it is the religion of the “Logos.” It is faith in the “Creator Spiritus,” in the Creator Spirit, from which proceeds everything that exists. Today, this should be precisely its philosophical strength, in so far as the problem is whether the world comes from the irrational, and reason is not, therefore, other than a “sub-product,” on occasion even harmful of its development or whether the world comes from reason, and is, as a consequence, its criterion and goal.
The Christian faith inclines toward this second thesis, thus having, from the purely philosophical point of view, really good cards to play, despite the fact that many today consider only the first thesis as the only modern and rational one par excellence. However, a reason that springs from the irrational, and that is, in the final analysis, itself irrational, does not constitute a solution for our problems. Only creative reason, which in the crucified God is manifested as love, can really show us the way. In the so necessary dialogue between secularists and Catholics, we Christians must be very careful to remain faithful to this fundamental line: to live a faith that comes from the “Logos,” from creative reason, and that, because of this, is also open to all that is truly rational.