1 Objection 1: It would seem that the intellectual memory is distinct from the intellect. For Augustine De Trin. x, 11) assigns to the soul memory, understanding, and will. But it is clear that the memory is a distinct power from the will. Therefore it is also distinct from the intellect.
1 Ad septimum sic proceditur. Videtur quod alia potentia sit memoria intellectiva, et alia intellectus. Augustinus enim, in X de Trin., ponit in mente memoriam, intelligentiam et voluntatem. Manifestum est autem quod memoria est alia potentia a voluntate. Ergo similiter est alia ab intellectu.
2 Objection 2: Further, the reason of distinction among the powers in the sensitive part is the same as in the intellectual part. But memory in the sensitive part is distinct from sense, as we have said Question 78, Article 4). Therefore memory in the intellectual part is distinct from the intellect.
2 Praeterea, eadem ratio distinctionis est potentiarum sensitivae partis et intellectivae. Sed memoria in parte sensitiva est alia potentia a sensu, ut supra dictum est. Ergo memoria partis intellectivae est alia potentia ab intellectu.
3 Objection 3: Further, according to Augustine De Trin. x, 11; xi, 7), memory, understanding, and will are equal to one another, and one flows from the other. But this could not be if memory and intellect were the same power. Therefore they are not the same power.
3 Praeterea, secundum Augustinum, memoria, intelligentia et voluntas sunt sibi invicem aequalia, et unum eorum ab alio oritur. Hoc autem esse non posset, si memoria esset eadem potentia cum intellectu. Non est ergo eadem potentia.
4 On the contrary, From its nature the memory is the treasury or storehouse of species. But the Philosopher De Anima iii) attributes this to the intellect, as we have said Article 6, ad 1). Therefore the memory is not another power from the intellect.
4 Sed contra, de ratione memoriae est, quod sit thesaurus vel locus conservativus specierum. Hoc autem philosophus, in III de anima, attribuit intellectui, ut dictum est. Non ergo in parte intellectiva est alia potentia memoria ab intellectu.
5 I answer that, As has been said above Question 77, Article 3), the powers of the soul are distinguished by the different formal aspects of their objects: since each power is defined in reference to that thing to which it is directed and which is its object. It has also been said above Question 59, Article 4) that if any power by its nature be directed to an object according to the common ratio of the object, that power will not be differentiated according to the individual differences of that object: just as the power of sight, which regards its object under the common ratio of color, is not differentiated by differences of black and white.
Now, the intellect regards its object under the common ratio of being: since the passive intellect is that in which all are in potentiality. Wherefore the passive intellect is not differentiated by any difference of being. Nevertheless there is a distinction between the power of the active intellect and of the passive intellect: because as regards the same object, the active power which makes the object to be in act must be distinct from the passive power, which is moved by the object existing in act.
Thus the active power is compared to its object as a being in act is to a being in potentiality; whereas the passive power, on the contrary, is compared to its object as being in potentiality is to a being in act. Therefore there can be no other difference of powers in the intellect, but that of passive and active. Wherefore it is clear that memory is not a distinct power from the intellect: for it belongs to the nature of a passive power to retain as well as to receive.
5 Respondeo dicendum quod, sicut supra dictum est, potentiae animae distinguuntur secundum diversas rationes obiectorum; eo quod ratio cuiuslibet potentiae consistit in ordine ad id ad quod dicitur, quod est eius obiectum. Dictum est etiam supra quod, si aliqua potentia secundum propriam rationem ordinetur ad aliquod obiectum secundum communem rationem obiecti, non diversificabitur illa potentia secundum diversitates particularium differentiarum, sicut potentia visiva, quae respicit suum obiectum secundum rationem colorati, non diversificatur per diversitatem albi et nigri. Intellectus autem respicit suum obiectum secundum communem rationem entis; eo quod intellectus possibilis est quo est omnia fieri. Unde secundum nullam differentiam entium, diversificatur differentia intellectus possibilis. Diversificatur tamen potentia intellectus agentis, et intellectus possibilis, quia respectu eiusdem obiecti, aliud principium oportet esse potentiam activam, quae facit obiectum esse in actu; et aliud potentiam passivam, quae movetur ab obiecto in actu existente. Et sic potentia activa comparatur ad suum obiectum, ut ens in actu ad ens in potentia, potentia autem passiva comparatur ad suum obiectum e converso, ut ens in potentia ad ens in actu. Sic igitur nulla alia differentia potentiarum in intellectu esse potest, nisi possibilis et agentis. Unde patet quod memoria non est alia potentia ab intellectu, ad rationem enim potentiae passivae pertinet conservare, sicut et recipere.
6 Reply to Objection 1: Although it is said 3 Sent. D, 1) that memory, intellect, and will are three powers, this is not in accordance with the meaning of Augustine, who says expressly De Trin. xiv) that if we take memory, intelligence, and will as always present in the soul, whether we actually attend to them or not, they seem to pertain to the memory only. And by intelligence I mean that by which we understand when actually thinking; and by will I mean that love or affection which unites the child and its parent. Wherefore it is clear that Augustine does not take the above three for three powers; but by memory he understands the soul's habit of retention; by intelligence, the act of the intellect; and by will, the act of the will.
6 Ad primum ergo dicendum quod, quamvis in III dist. I Sent. dicatur quod memoria, intelligentia et voluntas sint tres vires; tamen hoc non est secundum intentionem Augustini, qui expresse dicit in XIV de Trin., quod si accipiatur memoria, intelligentia et voluntas, secundum quod semper praesto sunt animae, sive cogitentur sive non cogitentur, ad solam memoriam pertinere videntur. Intelligentiam autem nunc dico qua intelligimus cogitantes; et eam voluntatem, sive amorem vel dilectionem, quae istam prolem parentemque coniungit. Ex quo patet quod ista tria non accipit Augustinus pro tribus potentiis; sed memoriam accipit pro habituali animae retentione, intelligentiam autem pro actu intellectus, voluntatem autem pro actu voluntatis.
7 Reply to Objection 2: Past and present may differentiate the sensitive powers, but not the intellectual powers, for the reason give above.
7 Ad secundum dicendum quod praeteritum et praesens possunt esse propriae differentiae potentiarum sensitivarum diversificativae; non autem potentiarum intellectivarum, ratione supra dicta.
8 Reply to Objection 3: Intelligence arises from memory, as act from habit; and in this way it is equal to it, but not as a power to a power.
8 Ad tertium dicendum quod intelligentia oritur ex memoria, sicut actus ex habitu. Et hoc modo etiam aequatur ei; non autem sicut potentia potentiae.