'Unlike Averroes, who places it in a separate potential intellect,' was the thought in St Thomas' mind. The quotation referred to is Soliloq. II, xix, 33 "This is a convincing proof that truth is also in our mind. . . . Therefore the soul is immortal. Do at last believe your own reasons, believe the voice of truth: she cries out that she dwells in you and is immortal."
Of God and His Creatures: 3.47