Today, there is a growing sense of the need to abandon philosophy or theology in favour of science and the convictions of specialists. The analyses presented by Aristotle and St Thomas in terms of the hierarchy of intellectual virtues allow us to draw attention to the conditions and consequences of these demands. In their view, knowledge grows out of certain principles and presuppositions, the evaluation of which belongs to the virtue of wisdom. The virtue of wisdom has as its object the highest principles, the reaching of which requires special methodological and metaphysical attention. In the case of Christian theology, this wisdom is enriched by faith in what God reveals to man. Faith understood in this way goes beyond natural cognition while at the same time having a strong rational basis of a historical and doctrinal nature. Scientific knowledge devoid of metaphysical reflection, as well as methodically dissociating itself from religious faith, can lead to a lack of awareness of one’s own act of faith in relation to one’s own presuppositions. This can entail unconscious transformations of one’s own scientific assumptions into principles of a universal philosophical nature. This can consequently lead to a misjudgement of all that is beyond the competence and methodology of the sciences.