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
In the title, synonyms, that is, terms having entirely the same signification: so that it is the same thing to say God is wise and God is good, etc.
II. In the body, it answers the question with a single negative conclusion, thus: Names of this kind attributed to God are not synonyms.
It is proved in two ways: first, according to those two lines of argument refuted in art. 2; second, in accordance with the position we follow. The first proof is: the rationes of these names are diverse, according to diverse things denied or caused, among them; therefore they are not synonyms.
The second proof is: our intellect knows God from creatures; therefore our conceptions of God are proportionate to the perfections that proceed from God into creatures; therefore they are various and multiple, and yet corresponding to the one utterly simple God; therefore the rationes of names of this kind attributed to God are diverse; therefore such names are not synonyms. – The antecedent, together with the first consequence, is evident. The second, however, is proved by the force of proportion: for just as the same God, simply and utterly one, is represented in real being (esse reale) by many perfections, so too is he represented in intentional being (esse intentionale); which is to say, by many conceptions. The third is proved thus: because the conception itself is the ratio of the name. The last is self-evident.
III. Concerning that proposition assumed to prove the third consequence, namely the ratio signified by a name is the conception of the intellect about the thing signified, there is doubt. First, because in IV Metaphysics, text. comm. XXVIII1, it is said that the ratio signified by a name is a definition; but it is evident that a definition is not a conception, since it is identified with what is defined. Second, because the ratio of a name belongs to second intentions, whereas the concept belongs to first intentions.
To this it is briefly said that ratio, among philosophers and theologians, in the matter at hand, can be taken in two ways, namely formally or denominatively; just as white is taken formally for whiteness, and denominatively for the thing that is white. If it is taken formally, it is thus a name of a second intention and signifies a certain relation. If denominatively, it signifies a conception and a definition, but in different ways. For a mental conception is called the ratio of a name because it is that by which the name is referred to its significate outside the soul; a definition, however, because it is that by which the meaning of the name is explicated. In the present text, moreover, it is clear that ratio is taken denominatively for a mental conception. And it was said to be signified by the name because it is signified proximately; the definition, however, is the ratio signified by the name ultimately. – And thus the solution of the objections is clear.
IV. Note here that the question of the present letter is not about things, but about names. And therefore, although the present question could perhaps have been decided from the diversity of objective formal reasons, as the Scotists do, by mixing in a matter concerning things, namely, the distinction of the divine attributes; yet the divine genius of the Author, since he learned from I Periherm.2 that names are signs of the passions which are in the soul, most formally shows the diversity of signification in names from the diversity of the conceptions of the soul signified, without mixing in other difficulties concerning things. For with this decision both parts of the contradiction stand in the matter of the attributes. Wherefore, lest so great a divinity of the work be defiled, there is not to be treated here of that distinction of attributes; but let it be a special question.
V. In response to the second, note that in the many concepts two things are contained, namely their conformity to the object and their plurality. If it is asked, therefore: To the many concepts we have of a thing, say God, what corresponds in reality? one must answer that to the concepts themselves there corresponds a single thing, imitable or representable in many ways; but to the plurality of those concepts there corresponds no plurality in the object itself, but rather its eminence, by virtue of which it has that it contains in a unified way what another apprehends in a divided way. Hence to argue from the distinction of concepts to the distinction of the object is to argue from the distinction of effects to the distinction of the cause—which is plainly absurd, since the unity of a cause stands together with a multitude of effects, as is evident. And for this reason both points are touched upon in the text, when it says that to them there corresponds one being (ens) simply, represented in many ways.
VI. In response to the third, note that the proposition God is one in reality and many according to reason can be understood in two ways. In one way, as being multiple by reason subjectively, that is, that it is the subject of several concepts: and this is false, since there is a single concept in the divine intellect by which God understands himself and all things at once. In another way, objectively, that is, that it is the object of several concepts, whether actually or virtually: and thus it is true, and to the point. So that God is said to be multiple according to reason, that is, he is the object verifying actually or virtually several conceptions of him.
VII. In the same reply, note that the root of the aforesaid 3 proposition, on God’s side, is His eminent unity; but on the side of our intellect, it is its proportion to sensible things. And the meaning is that the cause of such and so great a plurality of notions concerning God, which are signified by names, is the great remoteness of our intellect from that highest unity, so that it understands in so inarticulate a way, according as the imitations of the divine are diversified in things outside. For just as outside, justice is one thing, wisdom another, etc., so also in our intellect; and this, as will become clear below 4, is because it is the lowest intellect. – And note that he did not say: because the intellect receives from things; but he said: because the intellect apprehends in such a manifold way, just as things represent in a manifold way. Hence, if our intellect did not receive knowledge from things, as happened in Adam, the very same thing would nonetheless follow, from the fact that the intellect is proportioned to things, as is said in the letter.
VIII. From this root, however, you who look to others can easily derive the root of the plurality of rationes concerning God. For if so great a plurality arises from the supreme unity of the object with respect to an intellect so remote, a lesser plurality will arise from that same object with respect to an intellect nearer; but there will be no plurality with respect to what is nearest. And since it is established that the nearest intellect is not one that is in any way distinguished from what is understood, only the divine intellect remains, with respect to which, from that supreme unity, no plurality of concepts arises. The root, therefore—speaking absolutely and universally, and not merely with respect to us—of why God is multiple by way of ratio is His perfect unity and the finitude of created intellects. – We have said this here because it follows from this text: not because it pertains to this question, which concerns the Names, and consequently only those things that depend on us.