As far as the two great themes of “reason” and “freedom” are concerned, here we can only touch upon the issues connected with them. Yes indeed, reason is God's great gift to man, and the victory of reason over unreason is also a goal of the Christian life. But when does reason truly triumph? When it is detached from God? When it has become blind to God? Is the reason behind action and capacity for action the whole of reason? If progress, in order to be progress, needs moral growth on the part of humanity, then the reason behind action and capacity for action is likewise urgently in need of integration through reason's openness to the saving forces of faith, to the differentiation between good and evil. Only thus does reason become truly human. It becomes human only if it is capable of directing the will along the right path, and it is capable of this only if it looks beyond itself. Otherwise, man's situation, in view of the imbalance between his material capacity and the lack of judgement in his heart, becomes a threat for him and for creation.