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
Articulus IV: Utrum processio amoris in divinis sit generatio
Articulus V: Utrum sint plures processiones in divinis quam duae
Quaestio XXVIII: De relationibus divinis
Articulus I: Utrum in Deo sint aliquae relationes reales
Articulus II: Utrum relatio in Deo sit idem quod sua essentia
Articulus III: Utrum relationes quae sunt in Deo, realiter ab invicem distinguantur
Articulus IV: Utrum in Deo sint tantum quatuor relationes reales, scilicet paternitas, filiatio, spiratio et processio
Quaestio XXIX: De personis divinis
Articulus I: De definitione personae
Articulus II: Utrum persona sit idem quod hypostasis, subsistentia et essentia
Articulus III: Utrum nomen personae sit ponendum in divinis
Articulus IV: Utrum hoc nomen persona significet relationem
Quaestio XXX: De pluralitate personarum in divinis
Articulus I: Utrum sit ponere plures personas in divinis
Articulus II: Utrum in Deo sint plures personae quam tres
Articulus III: Utrum termini numerales ponant aliquid in divinis
Articulus IV: Utrum hoc nomen persona possit esse commune tribus personis
Quaestio XXXI: De his quae ad unitatem vel pluralitatem pertinent in divinis
Articulus I: Utrum sit Trinitas in divinis
Articulus II: Utrum Filius sit alius a patre
Articulus III: Utrum dictio exclusiva solus sit addenda termino essentiali in divinis
Articulus IV: Utrum dictio exclusiva possit adiungi termino personali
Quaestio XXXII: De divinarum personarum cognitione
Articulus I: Utrum Trinitas divinarum personarum possit per naturalem rationem cognosci
Articulus II: Utrum sint ponendae notiones in divinis
Articulus III: Utrum sint quinque notiones
Articulus IV: Utrum liceat contrarie opinari de notionibus
Quaestio XXXIII: De persona Patris
Articulus I: Utrum competat Patri esse principium
Articulus II: Utrum hoc nomen Pater sit nomen proprie divinae personae
Articulus III: Utrum hoc nomen Pater dicatur in divinis per prius secundum quod personaliter sumitur
Articulus IV: Utrum esse ingenitum sit Patri proprium
Quaestio XXXIV: De persona Filii
Articulus I: Utrum verbum in divinis sit nomen personale
Articulus II: Utrum verbum sit proprium nomen Filii
Articulus III: Utrum in nomine verbi importetur respectus ad creaturam
Quaestio XXXV: De imagine
Articulus I: Utrum imago in divinis dicatur personaliter
Articulus II: Utrum nomen imaginis sit proprium Filii
Quaestio XXXVI: De persona Spiritus Sancti
Articulus I: Utrum hoc nomen Spiritus Sanctus sit proprium nomen alicuius divinae personae
Articulus II: Utrum Spiritus Sanctus procedat a Filio
Articulus III: Utrum Spiritus Sanctus procedat a patre per Filium
Articulus IV: Utrum Pater et Filius sint unum principium Spiritus Sancti
Quaestio XXXVII: De nomine Spiritus Sancti quod est amor
Articulus I: Utrum amor sit proprium nomen Spiritus Sancti
A clear title from what is said in the body, and above 1 after the discussion concerning the name of the Father and of the Word.
In the body there is one distinction, with one conclusion. The distinction is: Love can be taken essentially, and personally. – The conclusion, however, is: Love, taken personally, is the proper name of the Holy Spirit. – And four things are at the same time made manifest, in the following order.
First, the difference between the divine processions is set forth in general, with respect to the knowledge and the naming that pertain to them.
Second, there: Yet likewise, a correspondence is posited between them with respect to two things: namely, the mode of producing, because just as by understanding itself it produces the word, which is the concept of the thing understood in the one understanding, so by loving itself it produces the impression or affection of the thing loved in the one loving; and the number of the relations, because just as there are three relations there—namely, to the thing understood, to the word, and conversely, that is, of the word to its principle—so here there are three, namely, to the thing loved, to the affection, and of this latter to its principle.
Third, there: But on the side of, he shows in particular the difference between these processions with respect to the naming of the relations mentioned above. Namely, because in the intellect all of them are named, whereas in the will only the first is named, for the names of the first are accommodated to the others.
Fourth, there: Thus therefore, he infers from what has been said the distinction first, and then the conclusion; as is clearly evident in the text.
II. Note here that that distinction of love into essential and personal, as is clearly had from this article, is not a distinction of the thing, but of the word in its various significations. For the whole reason for the distinction is the accommodation of the term to another signification; just as if the name "notion" were accommodated to the Word. Hence there are not two loves in the divine, one essential and the other personal. But the word love, on account of the poverty of terms, sometimes signifies the divine love, which is without doubt something essential; and sometimes the third Person proceeding by way of will and love. Hence vain is the labor of the arguments of Aureol, in distinction XXXII of Book I, at Capreolus2, against this distinction, insofar as it belongs to St. Thomas: since it is understood thus.
The remaining matters pertaining to this article have been discussed above, in question XXVII3.
Articulus II: Utrum Pater et Filius diligant se spiritu Sancto
In the title, note that, although the question is proposed concerning the thing itself, asking, Whether the Father and the Son etc.; nevertheless the difficulty concerns the truth of the proposition; namely, whether this proposition is true, The Father and the Son love each other in the Holy Spirit. For concerning the thing itself, whether loving is taken notionally or essentially, it is evident how the Father and the Son and the Holy Spirit are related to one another.
II. In the body he does three things: first, he shows the cause of the difficulty; second, he sets out five opinions; third, he answers the question.
III. As to the first, the reason for the difficulty concerns the proposition, because that ablative Spiritu Sancto seems to import a relation of principle with respect to love in the Father and the Son: which, however, is impossible.
As to the second, the opinions are sufficiently clear in the text.
IV. As to the third point, he posits two conclusions, according to the members of the distinction set out above, namely: to love is taken in two ways, essentially and notionally. The first conclusion is that, taking "to love" essentially, the Father and the Son do not love each other by the Holy Spirit. — The second is that, taking "to love" notionally, the Father and the Son love each other by the Holy Spirit.
And he declares and proves them, drawing the fifth opinion to a good sense, from two foundations. One concerns the term formal; the other, the mode of denomination. — The first, then, is this: every denominating thing, as such, has the character of something formal. And this is declared in two ways: first, because things are commonly denominated by forms; second, by the example of clothing. — The second, however, is this: that which produces can be denominated by that which proceeds from it not only as an action but also as an effect—but this when the effect itself is contained within the intellect of the action. The first part of this is declared in fire and heating; the second, however, in the tree and its blossoms.
For from these things, with the intellect of loving notionally subjoined, the following argument is to be formed for the second conclusion. Whenever the effect is included within the action of the intellect, the agent can be denominated both from the action and from the effect: but to love, taken notionally, is an action of this kind: therefore the Father and the Son can be denominated both by love and by the Holy Spirit. — The minor is explained in two ways: first, by expounding the term to love notionaliter; second, by a similar that speaking.
But since Augustine's first conclusion has been proven by authority, it is left as evident.
V. Concerning what has been said for the second conclusion, there are several doubts. Scotus, indeed, in Book I, distinction XXXII, question I, argues in four ways. First, against the foundation of the position. To build implies a building, since it is to make a temple; and yet it is not said that the builder builds with a temple. And in the case at hand, to breathe implies breath, for it is to emit breath; and yet it is not granted that they breathe with the Holy Spirit. Therefore the foundation is worthless.
Second, even if such a predication were at times to be granted, it would still not be convertible upon the agent. Yet this is what happens in the case at hand, when it is said, they love themselves.
Third, in a transitive construction, an effect, as effect, is never construed in the ablative: to love, however, is a transitive verb: therefore.
Fourth, he argues against the example of to flower in two ways. First, because to flower is not to produce flowers. Then because it is a neuter verb, which signifies the same thing as its adjective would signify if one were imposed; just as to be hot is to be warm. Then because, as Aureol adds1, if God impressed flowers upon a tree, the tree would not on that account be said to flower any more than before. — Then because the example is not parallel. For an ablative with a neuter verb, such as to flower, is not construed as the term of the action; but here we are speaking of the term of the action in the ablative with respect to an active verb, such as to love.
VI. To make the ambiguity of this clear, note two things. First, that when it is said in the foundation of the position, when in the intellect of action etc., this can be understood in two ways: first, of the intellect of action absolutely; second, of the intellect of action as thus signified. In what is at issue it is not understood in the first way, but in the second. For the notional act by which the Father and the Son produce the Holy Spirit is of one reason only absolutely; yet it is signified by one name as spirating, and by another name as loving, insofar as something is included in its reason when it is signified by the name of love which is not included when it is signified by the word of spiration; as is stated in the text, in the reply to the second objection.
Second, note that in the intellect the act so signified can include its effect in two ways. In one way, as specifying or determining the quality of the action, as in to whiten whiteness is included, and in to heat heat is included, and so with the others: for just as it is shown that not any making whatever but such a one is signified, we say to heat and to whiten and to build. In the second way the effect is included as conjoined to that action as the product to its production; as in "ly" I say, taken vocally, the vocal word is included; for to say is to utter a word. And it is taken in this way in the present case. So that the sense of that foundation is: Whenever in the intellect of an action signified by such a term there is included an effect as an effect conjoined to its own production, then the producer can be denominated from that effect in the ablative, etc.
And if one asks the cause why certain terms signify in this way and others do not, there is no other reason except that these have been imposed to signify in this way, while those have not. Yet these are distinguished from those in this respect: that words which thus include their effect, if they are constructed transitively with something else, are not signified as having the relation of the producer to the thing produced, as is clear when Socrates tells the history of Troy is said. But those do so, as is clear from saying, Socrates builds the heavens. And this arises from the first difference: namely, that those contain within themselves their proper effect, while these do not; and thus the relation to the effect remains in those unaltered with respect to the term, but in these it is determined according to what is adjoined.
VII. These points standing, the answer to the first2 is clear, by denying the assumption: for to build, to breathe, and other things of this kind import their effect only specifically.
To the second, it is said that a reflexive construction upon itself can occur when the object of the act can be the agent itself, as happens in the case at hand and in similar cases: for Socrates can speak of himself no less than of the history of Troy.
To the third, moreover, the assumption is also denied in the words that close within themselves an effect and pass over onto an object, such as to love, to say, etc. For they are constructed transitively with the object, as the term of the transition, in the accusative; and with the effect as that which denominates; as is clear from saying, Socrates says the history with a word.
But as to what is brought forward in the fourth place against the example of florere, it can easily be said that we posit examples not so that it may be thus, etc.3 Nevertheless, granting the example, we say that florere truly signifies to put forth flowers, as is clear from the usage of speakers. – Nor does the neutrality of the verb conflict with this: for this pertains to the mode of signifying, not to what is signified. – But if God were to imprint flowers, although the tree would truly be called florida, it would not yet be said that it floruit: for this proposition would be true: the tree which has not flowered is flowering (in bloom). – It is also apparent that the last assumption is false in this example; nor has the opposite been proved by them.
VIII. And note that in this matter, in my judgment, it is sufficient to bring forward what is reasonable by reason of the matter, namely, of the words: for all these things happen from terms signifying in this way. Hence it is also clear from the response to the second point that, although it may fittingly be said, Socrates says history with a word, nevertheless it would be unfitting to put the whole of its signification in place of says, saying, Socrates utters a word, the word, the history of Troy. For this happens from the diverse aptitude of the terms for construction: namely, because to utter cannot be constructed with that effect denominating; but says, so. And the like holds for breathing forth and loving with respect to the Holy Spirit, and begetting and speaking with respect to the Word, as is evident in the text.