The author first rejects interpretations of Aquinas, which he calls “Lockean” because, in the footsteps of Locke, they focus on faith and reason without taking into consideration what seems to be specific to faith, that is, the divine grace because of which the faithful believe. Then, the author concentrates on the theological standpoint from which Aquinas looks at the matter. Finally, he considers the consequences of Aquinas’s view as to the inconclusiveness that often affects debates, especially the religious ones.