Question 05

Why is the simple source positive plenitude rather than an unspecified absence of parts?

The positive fullness of God requires warranted perfections as well as freedom from constitutive reception.

In this question

The short answer

An absence of parts does not by itself establish life, understanding, or goodness. Positive arguments warrant these perfections of the divine source; simplicity then governs how they belong. A perfection established of an absolute source cannot be supplied by a distinct principle that completes that source. We call this perfection without reception. Unreceived plenitude names the conjunction of positive perfection and underived possession. It is the argued fullness of the source, rather than an unexplained enrichment of a merely negative description.

Why fullness needs a positive argument

A source described only as uncaused remains insufficiently characterized. It might be a primitive power with no intelligence, or a structure whose effects include minds. Understanding among those effects raises the question of its ultimate explanation. Causal vocabulary alone does not settle that question.

Our positive proposal treats understanding as a perfection: the intelligible possession of truth. Learning includes receptive limitation, while understanding achieved has positive content. We further hold that a universal source possesses pure perfections intrinsically in an eminent mode. This stronger principle goes beyond the thinner claim that the source can produce their effects.

This is the second of two arguments for divine perfection. Aquinas supplies a positive bridge from subsistent being to perfection; the article also distinguishes eminent causal possession from possessing each creaturely form in its creaturely manner.

Since therefore God is subsisting being itself, nothing of the perfection of being can be wanting to Him.

Thomas Aquinas, Summa theologiae, I, q. 4, a. 2, I answer thatFathers of the English Dominican Province, Second and Revised Edition (1920), as presented by New Advent.

What the positive perfection argument must establish

A pure perfection is a positive excellence whose content does not require a defect or a particular material organization. Understanding truth differs in this respect from having eyes: vision requires an organ and a bodily mode, while truth's intelligible possession need not include ignorance, inference, or embodiment in its definition. This distinction supplies a candidate for divine attribution; it does not yet establish that the candidate belongs to God.

The stronger argument joins causal adequacy to a theory of limitation. Its additional premise is that pure perfections are compatible modes of actuality, whose exclusion requires a limiting principle. Received intellectual life is one restricted realization; unrestricted actuality cannot exclude its positive content through such limitation. Understanding would therefore belong intrinsically in a higher mode, without the learner's dependence. This gives content to eminence. A source with powers sufficient to produce thinkers but no intrinsic understanding challenges that additional premise; causal efficacy alone does not defeat the rival.

Goodness also needs its own account. Truth perfects intellect because understanding attains its object; justice perfects rational relations because persons receive what is due. These judgments concern fulfillment under intelligible standards, not bare efficacy. To attribute goodness to the universal source, the argument must establish its relation to such perfections and exclude defective willing. Simplicity then excludes their acquisition through completing constituents. Plenitude is the resulting positive fullness, warranted through these further premises; independence alone supplies neither intelligence nor moral goodness.

Why understanding counts as positive actuality

Understanding is a positive achievement because a reality becomes present to a subject as intelligible: the thinker grasps what a claim means and why a reason supports it. A proof displayed on a screen can be correct without the screen understanding it. Conversely, a person may understand an argument while making a mistake about its conclusion. Cognitive presence therefore concerns more than producing an appropriate output. Learning, inference, and bodily representation are ways we acquire and exercise understanding; their receptive conditions need not belong to the positive content of understanding itself.

Aquinas offers a substantive account of this difference in Summa theologiae I, q.14, a.1. A knower possesses another thing’s form without becoming that thing in its ordinary material existence. Understanding a triangle does not turn the thinker into a triangle. Cognitive actuality has an openness to intelligible content beyond the exclusive material realization of one form. On his account, matter’s contraction of form explains restricted reception, while immaterial possession explains cognition. This is a theory of what knowing is, supported by the distinction between intelligible content and its particular vehicles.

The resulting argument has definite premises: if complete immateriality entails the actual presence of an intelligible form to itself as intelligible, and if the source is completely immaterial and actually intelligible, then the source understands itself. The first premise connects immaterial actuality with cognitive self-presence; being wholly unreceived does not establish it by itself. Aquinas develops self-knowledge on this basis in q.14, a.2. Bare self-identity or being knowable to somebody else would not suffice. The theory connecting immaterial actuality with intelligible presence does the positive work; the word unlimited cannot replace it.

The strongest blind source and the explanatory choice

The strongest rival grants one necessary, nonspatial, unified source with primitive powers sufficient for every created actuality, including conscious reasoners. It need not depend on externally imposed laws: its dispositions can belong intrinsically to what it is. Truth then consists in created judgments answering to reality, and epistemic warrant in appropriate relations between evidence, judgment, and truth. None of this requires the source itself to understand. Such a view challenges the proposed account of cognition without simply overlooking the universality of the source.

Our positive preference rests on explanatory continuity. Understanding includes content grasped under norms of truth and implication. A fundamental power described only through its tendency to produce understanding supplies causal sufficiency while leaving open whether its account explains cognition’s distinctive character beyond specifying its production. We seek an account of its positive character as well as its occurrence. An intellective source offers one basis for intelligibility and its intelligible possession: reality’s rational articulation can be received by thinkers because its origin is already intelligibly actual, rather than because cognition first appears as a categorically new achievement downstream.

This is a reason to prefer the stronger account when cognitive presence and rational norms are irreducible; it is an abductive reason, not a contradiction in the blind model. The conditional deduction requires the further principle that an ultimate explanation of a pure perfection possesses its positive content intrinsically, rather than only a disposition toward its production. That principle is defended by the demand for explanatory continuity, not by a ban on novelty in creatures. Once intellect is independently warranted, underivedness excludes its acquisition from a further perfecting principle. It then belongs without reception.

Why goodness includes fulfillment and right willing

Goodness begins with an appropriate fulfillment: truth perfects understanding, health perfects a living organism, and justice perfects relations between persons. These standards distinguish successful activity from activity that damages its subject or violates another’s due. A powerful act of deception can be effective and unjust. Aquinas’s distinction between merely existing and possessing the completion one ought to have, in I, q.5, a.1, reply 1, makes room for this difference. His doctrine that being is good cannot mean that every exercise of an existing power is morally right.

The source’s positive goodness follows conditionally through the same account of pure perfection. If understanding and other independently justified excellences belong intrinsically at the source, the source possesses goods without needing their acquisition. As the origin of received perfections, it also grounds what creatures can genuinely attain. These claims give content to essential goodness and to desirability; they do not yet establish that every divine intention is right. Omniscience could exclude mistaken evaluation while leaving the question of knowingly defective willing untouched.

For moral rectitude the further argument concerns practical reason. Another’s genuine fulfillment supplies a reason for regard; suffering chosen simply as an end supplies no corresponding good for its subject. Right willing acknowledges these reasons and their due ordering. Its excellence is therefore more than accurate information or executive success. If unrestricted rational actuality includes faultless practical responsiveness as well as understanding, the source cannot knowingly prefer cruelty as such. Complete self-possession removes motives of need, fear, or rivalry; comprehensive understanding removes ignorance. These considerations strengthen the case for right willing, while the decisive premise remains the positive perfection of practical exercise. A theory allowing an eternally informed but vicious source rejects that premise rather than refuting itself through contradiction.

How perfection belongs without reception

Once a perfection is warranted, simplicity asks how it belongs to God. If a distinct principle makes an incomplete subject intelligent or good, that subject receives completion. An absolute source cannot possess essential perfection through that dependence. The warranted perfection therefore belongs without a completing actualizer.

This is the bridge from exclusion to plenitude. Its two sides remain distinguishable: why the perfection belongs, and why its possession is unreceived. Conflating them would make simplicity prove more than its argument supplies. Holding them together allows the positive divine names to retain content while denying their creaturely modes of acquisition and deficiency.

Dionysius combines causal precontainment with an apophatic account of the source beyond ordinary existence. His language of super-essential transcendence differs from Aquinas's subsistent-being analysis and should not be silently equated with it; the passage does not establish free selection among worlds.

For God is not Existent in any ordinary sense, but in a simple and undefinable manner embracing and anticipating all existence in Himself.

Pseudo-Dionysius the Areopagite, The Divine Names, Chapter V, section 4C. E. Rolt, Dionysius the Areopagite: On the Divine Names and the Mystical Theology (London: SPCK, 1920); public-domain text at CCEL.

Why gift adds no missing deity

Plenitude names God's fullness in himself. The All names that fullness considered as the universal source of finite actuality and perfection. Neither expression means an aggregate containing God and creatures. A creature can receive a genuine good while its existence adds no constituent to the divine nature and repairs no lack in God.

Communicability also differs from actual communication. Fullness can ground the intelligibility of giving without selecting a world or making every possible good actual. Divine generosity concerns the recipient's good; it does not answer a need for divine self-completion. The distinct question of free, intelligent authorship remains essential to explaining why this gift exists.

The Catechism attributes these words to Bonaventure to explain that creation manifests and communicates divine glory rather than increasing it. The same paragraph immediately quotes Vatican I on creation with absolute freedom of counsel. Communicability therefore supplies no inference here to necessary emanation or to a world needed for divine perfection.

not to increase his glory, but to show it forth and to communicate it

Bonaventure, Commentary on the Sentences, quoted in the Catechism of the Catholic Church, In II Sent. I, 2, 2, 1, as cited in CCC 293, note 135English wording quoted in the official Catechism of the Catholic Church, paragraph 293. Verified through this quotation and its source note; the original commentary was not independently retrieved.

The strongest objection

Why could a noncognitive source not produce intelligent creatures?

A source with primitive powers sufficient for cognitive effects remains a rival to the stronger perfection argument. Our claim is that ultimate adequacy includes genuine possession of the pure perfection's positive content. If that principle fails, sourcehood may remain established while divine intellect does not follow by this route. Calling unknown productive power eminence would leave the substantive disagreement unresolved.

What follows

  • Unreceived plenitude joins a metaphysics of underivation to positive perfection arguments. Its philosophical force depends especially on the defended passage from cognitive effects to intrinsic source perfection.

Sources

Quotation texts, translations, and source notes

Connections