Commentaria in Primam Partem Summae Theologiae
Tommaso de Vio Cajetan (1469–1534)
First published 1507
Cajetan's Commentaria in Primam Partem Summae Theologiae offers an article-by-article exposition of Aquinas's Prima Pars. Its discussions of sacred doctrine, analogy, divine knowledge, and creation became important reference points in the later Thomist tradition. The present digital edition follows the Latin text of the Leonine edition and includes English and Spanish translations. Coverage is currently partial.
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Praefatio ad Oliverium Carrafam
In Prooemium Summae Theologiae
Quaestio I: De sacra doctrina, qualis sit, et ad quae se extendat
Articulus I: Utrum sit necessarium, praeter philosophicas disciplinas, aliam doctrinam haberi
Articulus II: Utrum sacra doctrina sit scientia
Articulus III: Utrum sacra doctrina sit una scientia
Articulus IV: Utrum sacra doctrina sit scientia practica
Articulus V: Utrum sacra doctrina sit dignior aliis scientiis
Articulus VI: Utrum haec doctrina sit sapientia
Articulus VII: Utrum deus sit subiectum huius scientiae
Articulus VIII: Utrum haec doctrina sit argumentativa
Articulus IX: Utrum sacra scriptura debeat uti metaphoris
Articulus X: Utrum sacra scriptura sub una littera habeat plures sensus
Quaestio II: De Deo, an Deus sit
Articulus I: Utrum Deum esse sit per se notum
Articulus II: Utrum Deum esse sit demonstrabile
Articulus III: Utrum Deus sit
Quaestio III: De Dei simplicitate
Articulus I: Utrum Deus sit corpus
Articulus II: Utrum in Deo sit compositio formae et materiae
Articulus III: Utrum sit idem Deus quod sua essentia vel natura
Articulus IV: Utrum in Deo sit idem essentia et esse
Articulus V: Utrum Deus sit in genere aliquo
Articulus VI: Utrum in Deo sint aliqua accidentia
Articulus VII: Utrum Deus sit omnino simplex
Articulus VIII: Utrum Deus in compositionem aliorum veniat
Quaestio IV: De Dei perfectione
Articulus I: Utrum Deus sit perfectus
Articulus II: Utrum in Deo sint perfectiones omnium rerum
Articulus III: Utrum aliqua creatura possit esse similis Deo
Quaestio V: De bono in communi
Articulus I: Utrum bonum differat secundum rem ab ente
Articulus II: Utrum bonum secundum rationem sit prius quam ens
Articulus III: Utrum omne ens sit bonum
Articulus IV: Utrum bonum habeat rationem causae finalis
Articulus V: Utrum ratio boni consistat in modo, specie et ordine
Articulus VI: Utrum convenienter dividatur bonum per honestum, utile et delectabile
Quaestio VI: De bonitate Dei
Articulus I: Utrum esse bonum Deo conveniat
Articulus II: Utrum Deus sit summum bonum
Articulus III: Utrum esse bonum per essentiam sit proprium Dei
Articulus IV: Utrum omnia sint bona bonitate divina
Quaestio VII: De infinitate Dei
Articulus I: Utrum Deus sit infinitus
Articulus II: Utrum aliquid aliud quam Deus possit esse infinitum per essentiam
Articulus III: Utrum possit esse aliquid infinitum actu secundum magnitudinem
Articulus IV: Utrum possit esse infinitum in rebus secundum multitudinem
Quaestio VIII: De existentia Dei in rebus
Articulus I: Utrum Deus sit in omnibus rebus
Articulus II: Utrum Deus sit ubique
Articulus III: Utrum Deus sit ubique per essentiam, praesentiam et potentiam
Articulus IV: Utrum esse ubique sit proprium Dei
Quaestio IX: De Dei immutabilitate
Articulus I: Utrum Deus sit omnino immutabilis
Articulus II: Utrum esse immutabile sit Dei proprium
Quaestio X: De Dei aeternitate
Articulus I: Utrum convenienter definiatur aeternitas, quod est interminabilis vitae tota simul et perfecta possessio
Articulus II: Utrum Deus sit aeternus
Articulus III: Utrum esse aeternum sit proprium Dei
Articulus IV: Utrum aeternitas differat a tempore
Articulus V: De differentia aevi et temporis
Articulus VI: Utrum sit unum aevum tantum
Quaestio XI: De unitate Dei
Articulus I: Utrum unum addat aliquid supra ens
Articulus II: Utrum unum et multa opponantur
Articulus III: Utrum Deus sit unus
Articulus IV: Utrum Deus sit maxime unus
Quaestio XII: Quomodo Deus a nobis cognoscatur
Articulus I: Utrum aliquis intellectus creatus possit Deum videre per essentiam
Articulus II: Utrum essentia Dei ab intellectu creato per aliquam similitudinem videatur
Articulus III: Utrum essentia Dei videri possit oculis corporalibus
Articulus IV: Utrum aliquis intellectus creatus per sua naturalia divinam essentiam videre possit
Articulus V: Utrum intellectus creatus ad videndum Dei essentiam aliquo creato lumine indigeat
Articulus VI: Utrum videntium essentiam Dei unus alio perfectius videat
Articulus VII: Utrum videntes Deum per essentiam ipsum comprehendant
Articulus VIII: Utrum videntes Deum per essentiam omnia in Deo videant
Articulus IX: Utrum ea quae videntur in Deo a videntibus divinam essentiam per aliquas similitudines videantur
Articulus X: Utrum videntes Deum per essentiam simul videant omnia quae in ipso vident
Articulus XI: Utrum aliquis in hac vita possit videre Deum per essentiam
Articulus XII: Utrum per rationem naturalem Deum in hac vita cognoscere possimus
Articulus XIII: Utrum per gratiam habeatur altior cognitio Dei quam ea quae habetur per rationem naturalem
Quaestio XIII: De nominibus Dei
Articulus I: Utrum aliquod nomen Deo conveniat
Articulus II: Utrum aliquod nomen dicatur de Deo substantialiter
Articulus III: Utrum aliquod nomen dicatur de Deo proprie
Articulus IV: Utrum nomina dicta de Deo sint nomina synonyma
Articulus V: Utrum ea quae de Deo dicuntur et creaturis, univoce dicantur de ipsis
Articulus VI: Utrum nomina per prius dicantur de creaturis quam de Deo
Articulus VII: Utrum nomina quae important relationem ad creaturas, dicantur de Deo ex tempore
Articulus VIII: Utrum hoc nomen *Deus* sit nomen naturae
Articulus IX: Utrum hoc nomen *Deus* sit communicabile
Articulus X: Utrum hoc nomen *Deus* univoce dicatur de Deo per participationem, secundum naturam, et secundum opinionem
Articulus XI: Utrum hoc nomen *qui est* sit maxime nomen Dei proprium
Articulus XII: Utrum propositiones affirmativae possint formari de Deo
Quaestio XIV: De scientia Dei
Articulus I: Utrum in Deo sit scientia
Articulus II: Utrum Deus intelligat se
Articulus III: Utrum Deus comprehendat seipsum
Articulus IV: Utrum ipsum intelligere Dei sit eius substantia
Articulus V: Utrum Deus cognoscat alia a se
Articulus VI: Utrum Deus cognoscat alia a se propria cognitione
Articulus VII: Utrum scientia Dei sit discursiva
Articulus VIII: Utrum scientia Dei sit causa rerum
Articulus IX: Utrum Deus habeat scientiam non entium
Articulus X: Utrum Deus cognoscat mala
Articulus XI: Utrum Deus cognoscat singularia
Articulus XII: Utrum Deus possit cognoscere infinita
Articulus XIII: Utrum scientia Dei sit futurorum contingentium
Articulus XIV: Utrum Deus cognoscat enuntiabilia
Articulus XV: Utrum scientia Dei sit variabilis
Articulus XVI: Utrum Deus de rebus habeat scientiam speculativam
Quaestio XV: De ideis
Articulus I: Utrum ideae sint
Articulus II: Utrum sint plures ideae
Articulus III: Utrum omnium quae cognoscit Deus, sint ideae
Quaestio XVI: De veritate
Articulus I: Utrum veritas sit tantum in intellectu
Articulus II: Utrum veritas sit in intellectu componente et dividente
Articulus III: Utrum verum et ens convertantur
Articulus IV: Utrum bonum secundum rationem sit prius quam verum
Articulus V: Utrum Deus sit veritas
Articulus VI: Utrum sit una sola veritas, secundum quam omnia sunt vera
Articulus VII: Utrum veritas creata sit aeterna
Articulus VIII: Utrum veritas sit imutabilis
Quaestio XVII: De falsitate
Articulus I: Utrum falsitas sit in rebus
Articulus II: Utrum in sensu sit falsitas
Articulus III: Utrum falsitas sit in intellectu
Articulus IV: Utrum verum et falsum sint contraria
Quaestio XVIII: De vita Dei
Articulus I: Utrum omnium naturalium rerum sit vivere
Articulus II: Utrum vita sit quaedam operatio
Articulus III: Utrum Deo conveniat vita
Articulus IV: Utrum omnia sint vita in Deo
Quaestio XIX: De voluntate Dei
Articulus I: Utrum in Deo sit voluntas
Articulus II: Utrum Deus velit alia a se
Articulus III: Utrum quidquid Deus vult, ex necessitate velit
Articulus IV: Utrum voluntas Dei sit causa rerum
Articulus V: Utrum voluntatis divinae sit assignare aliquam causam
Articulus VI: Utrum voluntas Dei semper impleatur
Articulus VII: Utrum voluntas Dei sit mutabilis
Articulus VIII: Utrum voluntas Dei necessitatem rebus volitis imponat
Articulus IX: Utrum voluntas Dei sit malorum
Articulus X: Utrum Deus habeat liberum arbitrium
Articulus XI: Utrum sit distinguenda in Deo voluntas signi
Articulus XII: Utrum convenienter circa divinam voluntatem ponantur quinque signa
Quaestio XX: De amore Dei
Articulus I: Utrum amor sit in Deo
Articulus II: Utrum Deus omnia amet
Articulus III: Utrum Deus aequaliter diligat omnia
Articulus IV: An Deus semper magis diligat meliora
Quaestio XXI: De iustitia et misericordia Dei
Articulus I: Utrum in Deo sit iustitia
Articulus II: Utrum iustitia Dei sit veritas
Articulus III: Utrum misericordia competat Deo
Articulus IV: Utrum in omnibus operibus Dei sit misericordia et iustitia
Quaestio XXII: De providentia Dei
Articulus I: Utrum providentia Deo conveniat
Articulus II: Utrum omnia sint subiecta divinae providentiae
Articulus III: Utrum Deus immediate omnibus provideat
Articulus IV: Utrum providentia rebus provisis necessitatem imponat
Quaestio XXIII: De praedestinatione
Articulus I: Utrum homines praedestinentur a Deo
Articulus II: Utrum praedestinatio aliquid ponat in praedestinato
Articulus III: Utrum Deus aliquem hominem reprobet
Articulus IV: Utrum praedestinati eligantur a Deo
Articulus V: Utrum praescientia meritorum sit causa praedestinationis
Articulus VI: Utrum praedestinatio sit certa
Articulus VII: Utrum numerus praedestinatorum sit certus
Articulus VIII: Utrum praedestinatio possit iuvari precibus sanctorum
Quaestio XXIV: De libro vitae
Articulus I: Utrum liber vitae sit idem quod praedestinatio
Articulus II: Utrum liber vitae sit solum respectu vitae gloriae praedestinatorum
Articulus III: Utrum aliquis deleatur de libro vitae
Quaestio XXV: De divina potentia
Articulus I: Utrum in Deo sit potentia
Articulus II: Utrum potentia Dei sit infinita
Articulus III: Utrum Deus sit omnipotens
Articulus IV: Utrum Deus possit facere quod praeterita non fuerint
Articulus V: Utrum Deus possit facere quae non facit
Articulus VI: Utrum Deus possit meliora facere ea quae facit
Quaestio XXVI: De divina beatitudine
Articulus I: Utrum beatitudo Deo competat
Articulus II: Utrum Deus dicatur beatus secundum intellectum
Articulus III: Utrum Deus sit beatitudo cuiuslibet beati
Articulus IV: Utrum in Dei beatitudine omnis beatitudo includatur
Quaestio XXVII: De processione divinarum personarum
Articulus I: Utrum processio sit in divinis
Articulus II: Utrum aliqua processio in divinis generatio DICI possit
Articulus III: Utrum sit in divinis alia processio a generatione verbi
In the title, the word other signifies true otherness; and because of the word is, it must signify real otherness: for otherness is not true among real processions unless it is real. The phrase in the divine is taken as was declared in article 1, Comment., n. I.1 And in the same way it is to be understood in each of the articles of this question, lest the same thing need be repeated many times.
II. In the body there is one conclusion, responsive to the question in the affirmative: In God, besides the procession of the Word, there is another procession, which is the procession of love. — And it is proved thus. In intellectual nature among us, besides the procession of the word according to intelligible action, there is another procession, namely of love, according to the operation of the will; therefore in God, besides the procession of the Word, there is another procession, etc.
The antecedent is proved by proportion: for just as by the conception of the word the understood is in the one understanding, so by the procession of love the beloved is in the one loving. — The consequence, however, is proved thus: because in the divine there is no procession except according to the immanent action of the intellectual nature, which is known to be twofold, that of the intellect and that of the will.
III. On this point there first arises a doubt similar to the doubt raised concerning the procession of the word2: namely, whether by an act of the will something proceeds within it as the term of that same act. And besides the common arguments drawn from the side of immanent action, there are others drawn from what is proper to the will. For it seems, in the first place, to contradict St. Thomas himself in the Questions On Truth, q. IV, art. 2, ad 7, where he says that in the will nothing proceeds except by way of operation, and that it is otherwise in the intellect. – Second, against this both Scotus argues3 and others who hold that produced love is an act of loving as spirated, just as they hold the word to be a generated act of understanding. They argue more from authorities than from reasons. But all the authorities and reasons tend toward this: that the Holy Spirit is love, and love is an act of loving.
IV. Concerning those words, according to which the beloved is in the lover, a doubt arises from Aureol, as reported by Capreolus, at the First Distinction4 For he strives with many arguments to attack this, both simply and ad hominem. Nevertheless all his motives consist in this: Love, or the impulse of the will, consists in a tending toward the thing loved, and not in a likeness of it; therefore through the procession of love the beloved is not made to be in the lover, but rather the converse—the lover is drawn, transformed, and is in the thing loved—according to that saying of Matthew VI5: where your treasure is, there is your heart.
V. To make these things clear, it must be known that, because the things of the will are less known and less named, the Author defined those things that are in the will proportionally from those things that appear in the intellect: so that, just as by understanding we form a concept, so by loving we produce a certain inclination within ourselves toward the beloved; and because this lacks a name, it is called love, impulse, inclination, and affection. Yet between intellect and will there is a difference not only in this, that the term of the former is a likeness, while that of the latter is an affection; but also in this, that the thing which is the term in the intellect has both the mode and the name of a term, as is clear in the case of the word and the concept; whereas the thing terminating in the will, although in reality it is a term, nevertheless has neither the mode nor the name of a term. For it both is, and is signified as, tending toward something else; but it is evident that tending toward something else is the condition not of a term, but of a way.
And for this reason those words were written in the Questions On Truth6, as is evident to one who carefully compares and penetrates the whole of the reply. Hence they do nothing against our thesis. – And from the same root the answer to the remaining objections in the first doubt is clear: for, owing to the poverty of words, the name of love extends to its terminus.
VI. To the second doubt, however7 it is said that the arguments err in two respects. First in this, that they do not see a third mode of being in, besides through essence and through likeness, namely through inclination or affection, the way being-down is in the heavy thing, and being-up in the light. For this, as is explained in IV Contra Gentiles, chapter XIX, is a third mode: and according to this mode, the beloved is in the lover, as is evident of itself. – Second in this, that, without weighing what it is for the beloved to be in the lover, they think this consequence holds: the beloved comes to be from the will in the lover; therefore the beloved is drawn to the lover; whereas it holds not at all. Because the beloved does not come to be in the lover otherwise than according to the affection of the lover toward the beloved: and consequently, by the very fact that it so comes to be, the lover is drawn, transformed, impelled toward the beloved objectively; and thus it is in him. And this could easily have been apparent from the very notion of the beloved. For to be loved is not to be drawn, but to draw the lover: and consequently, to come to be as beloved is not to come to be as drawn, but as drawing: and therefore, if something comes to be in the will as beloved, it does not come to be as drawn toward it, but on the contrary as drawing it. And in this way we grant that a likeness proportional to that of the letter runs between intellect and will, namely with respect to this, that just as there the thing understood comes to be, so here the thing loved: but differently, as has been said, and as will be said further below8.
VII. In response to the second, note that the reply consists in this, that that major premise does not hold in the infinite nature, which identifies all things to itself: although it is found to be true in other things, because they are finite, and for that reason it was assumed from them as though it were a maxim.
VIII. In response to the third, note two things. First is that the third argument intended to conclude that there is not a greater distinction between these processions than there is between the intellect and the will: and consequently, just as between the intellect and the will in God there is no true otherness, so neither between the processions. The reply, however, intends to show that the distinction between the processions is greater: indeed, that there is otherness between them, while the identity of intellect and will stands; and this on account of the order of origin between them—an order which nevertheless arises from the formal characters of the principles, namely the intellect and the will, between which there is no such order. Thus there is a distinction in what is principiated, but not in the principles themselves; and from the very character of those principles there is an order of origin—not within the principles themselves, but in the processions according to them. And thus the otherness of the processions sought for, determined only implicitly in the body of the article, is here made manifest explicitly from the order of origin.
Second, it must be noted here that in the text it is said that it belongs to the nature of love to proceed from a conception of the intellect; and consequently, in the divine, that procession be from a procession. Now the first doubt here is whether this belongs to the nature of the procession of love per se in the first way of speaking, or in the second. And again there is doubt whether it belongs to the nature of love to proceed from the Word insofar as it is Word, or only insofar as the Word is the thing understood. There is also a third doubt: whether the aforementioned order of origin is precisely that by which the processions themselves are really distinguished, so that if it were set aside there would be no real distinction between them. But since these matters are to be discussed in q. 36, art. 29, where they will also be better understood, after the treatise on the divine Persons, therefore let us pass over them here.
IX. Yet I judged that five points must by no means be passed over. First is this: it is established that, taking "concept" for the thing conceived or known as such, the procession of love must be from the concept; for we can in no way love what is unknown. And therefore the text speaks of it as if self-evident, that it belongs to the nature of love to arise from a concept.
X. Second is that the thing known is the cause of love in the genus of efficient cause. This is evident from the fact that in the text it is said that love has an order of origin to the concept. For it is clear that the order of origin, in the case at hand, is an order according to the mode of efficiency. And there accords with this opinion that saying of Averroes in Book XII of the Metaphysics, comm. XXXVI: the bath in the soul is the agent of desire, etc.
XI. Third is that, although love arises effectively from two things, namely from the will and from the lovable thing as known, just as the word arises from the intellect and the intelligible together with the intellect; yet a great difference must be perceived here. For the concept is produced by both in the power of one complete efficient cause, and in the character of a thing: but love is produced by the will and by the lovable thing as known, not as integrating one agent, but from different sources, with different characters concurring. For love arises from the will in the character of a thing, and from the lovable thing in the character of something known: for the lovable, as known, begets love, while the will does so as such a thing. And these may suffice for now as foundations for what is to be said concerning love and the Holy Spirit.
XII. Fourth is that Scotus, in Book I, distinction XIII, understood from that word order that this passage concerns the distinction of processions according to prior and posterior: and he attacked it in three ways. First, because this is not the primary distinction of the processions: for the reason that one is prior and the other posterior is that the one is of such a kind and the other of such a kind. – Second, because the divine processions are relations: but relations are not distinguished primarily by other relations. – Third, because these relations of order are other than the relations of origin. This is proved: because they are between different extremes; for the relation of origin is between the produced and the producing, whereas the relation of order is between origin and origin. The text, therefore, has been badly expounded.
But to these points the reply is easy. For from the very course of this treatise the sense of the text is apparent, together with the reason why the Author spoke here in this seemingly diminished way. For it will be shown below10 that in the divine there is no order except of origin, and that this does not include relations of prior and posterior. And therefore the distinction of order posited here has been badly expounded as a distinction according to prior and posterior: since it is a distinction of the order of origin. – And if it be objected against this that this distinction is not the first, speaking of real distinction, the assumption is denied: for, as will be clear below11, only the relations of origin really distinguish in the divine. – As for the formal distinction, the reply is already evident from the body of the article, and from the following article: namely, that they are distinguished, one by the intellect, the other by the will. Hence this order does not add other relations over and above the origins themselves, as the second objection wishes. – Nor is it true that, according to the thing, the extremes of the relations of origin and of order are other. For the product and its passive origin in the divine are one and the same relation: and in the same order in which the product, namely the Holy Spirit, is from the producer, namely the Son, the procession of the former is from the procession of the latter; which is to arise from it. – The Author, however, passed over these points here in silence, because, according to his custom, he proceeds from the more universal to the less universal, to be treated in their proper place: here the order, and then below12 he will specify the order of origin.
XIII. The fifth point is that Scotus's arguments, in the same place, against those who hold that these processions are distinguished by principles distinct according to reason, namely intellect and will, are not opposed to our way. For they fight only against those who hold that the real distinction of the processions depends on the distinction of reason of the principles; which is foreign to the doctrine of St. Thomas. For although, as is said in the text, from the account of intellect and will there arises the distinction of these processions, nevertheless the distinction of these does not arise from the distinction of those. It is one thing to say from intellect and will, or from their accounts, and another thing to say from their distinction: for the first signifies God himself, or a real thing, while the second signifies an ens rationis.