Distinctions in Scholastic Philosophy
| Latin | distinctio realis; distinctio rationis; distinctio formalis |
|---|---|
| Principal locus | Summa theologiae I, q. 28, aa. 1–3; De ente et essentia, ch. 4 |
| Scope | Logic, metaphysics, and theological terminology |
| Doctrinal standing | A family of school analyses; particular revealed distinctions may be dogma |
| School | Thomism and the wider scholastic tradition |
Distinctions in Scholastic Philosophy are disciplined ways of stating how two concepts or realities differ, above all by distinguishing what differs in reality from what differs through the intellect's manner of understanding.[1][2]
Why scholastics distinguish
A distinction answers a precise question: are the two terms merely different words, different concepts founded on one reality, formally diverse aspects inseparable in a thing, or realities capable of being opposed or separated? Without that question, the maxim distinguish becomes a device for evasion. Properly used, it prevents equivocation. Nature and person, substance and accident, essence and existence, act and potency, and intellect and will cannot be exchanged simply because ordinary language sometimes overlaps them.
The classification is analogical across subjects. A real distinction between two created substances is not identical in mode to the real distinction between matter and form, between a substance and its accidents, or between the divine Persons. The phrase says that the difference is not produced solely by the considering mind; further explanation identifies its foundation and mode. Scholastic authors therefore attach qualifications such as major, minor, modal, adequate, or inadequate, and different schools do not always use these labels identically.[3]
Real and rational distinctions
A real distinction, distinctio realis, has a foundation on the side of reality independently of the mind's act of distinguishing. Peter is not Paul; a substance is not its accidental color; in Thomism, a creature's essence is not its received act of existence. De ente et essentia, chapter 4 supplies Aquinas's classic argument that whatever does not belong to the understood essence is received from another, leading to the unique first cause whose essence is existence and to composed created beings.[4]
A distinction of reason, distinctio rationis, arises through intellectual consideration. A purely rational distinction can separate synonymous or coextensive accounts without a distinct foundation in the thing. A reasoned distinction, often called virtual or a distinction of reason with a foundation in reality, expresses diverse intelligible aspects grounded in one undivided reality. Nature, essence, and substance can name different aspects of the same being; God's wisdom and power are conceptually distinct perfections really identical with the simple divine essence.[1][2]
Dogmatic uses and divine simplicity
The Trinity requires especially exact grammar. Catechism 251–255 teaches one divine substance, three really distinct Persons, and relations of origin as the sole ground of their distinction. Aquinas, Summa theologiae I, question 28, articles 1–3, argues that relations of paternity, filiation, and procession are real in God and really opposed to one another, while each is identical with the divine essence. The distinction neither divides God into parts nor reduces Father, Son, and Holy Spirit to names or modes.[1][5]
That dogmatic application shows why no slogan about distinctions is sufficient by itself. Divine attributes are not really distinct things composing God, yet the personal relations are really distinct by opposition. Creator and creature are really distinct, yet every created perfection depends upon God. Christ's divine and human natures are distinct without dividing his one Person. The revealed truth governs the metaphysical instrument. A preferred school vocabulary may serve the mystery, but it cannot revise conciliar confession to preserve a system.[5]
Differences among Catholic schools
Thomists characteristically affirm a real distinction of essence and existence in creatures and deny a middle category between real and rational distinction. Scotus's formal distinction a parte rei identifies formally diverse contents inseparable in one thing and is less than the distinction between two things but more than a construct of reason. Suárez gives a prominent role to modal and reasoned distinctions and denies the Thomistic real distinction of essence and existence. These are serious intramural disagreements, not separate creeds.[2][3]
The Catholic Encyclopedia articles on Metaphysics and Thomism record these school positions while noting the shared doctrinal boundaries. A Catholic must confess divine simplicity, the real distinction of the Persons, creation from nothing, and the true distinction of Creator and creature. The Church does not require every metaphysical question to be solved with one manual's chart. Sound use states the terms, author, and disputed context, then identifies any governing doctrine. The point of distinctions is clearer truth, not multiplying invisible entities or disguising contradiction.[2][3]
References
- Back to citation occurrence 1.0 Back to citation occurrence 1.1 Back to citation occurrence 1.2 Thomas Aquinas, Summa theologiae I, question 28, articles 1–3 — Real and logical relations and the real distinction of opposed relations in God without division of the divine essence.
- Back to citation occurrence 2.0 Back to citation occurrence 2.1 Back to citation occurrence 2.2 Back to citation occurrence 2.3 Catholic Encyclopedia (1913), Metaphysics — Historical survey of real and notional being and of disputed scholastic accounts of the distinction between essence and existence.
- Back to citation occurrence 3.0 Back to citation occurrence 3.1 Back to citation occurrence 3.2 Catholic Encyclopedia (1913), Thomism — Historical statement of characteristic Thomistic real distinctions and the school's rejection of an intermediate formal distinction.
- Back to citation Thomas Aquinas, De ente et essentia, chapter 4 — The creaturely composition of essence and received existence and the unique simplicity of the first cause.
- Back to citation occurrence 5.0 Back to citation occurrence 5.1 Catechism of the Catholic Church, 251–255 — Authoritative terminology of substance, person, and relation and the dogma that the divine Persons are really distinct only by relations of origin.