Disputed Questions on Truth
Quaestiones Disputatae de Veritate — Aquinas's 1256-59 first major series of disputed questions, conducted as a Master of Theology at Paris
Tradition: High medieval scholasticism / Thomistic theology
Truth is the conformity of intellect with thing — the foundational scholastic treatment of truth, knowledge, and divine cognition
De Veritate is the first of Aquinas's three major series of disputed questions (the others are De Potentia and De Malo) and contains his earliest mature treatment of the topics that would later organise the Summa. The 29 questions take up: truth itself (Q1, the foundational definition "veritas est adaequatio rei et intellectus"); divine knowledge (QQ2-8, including God's knowledge of singulars, possibles, and future contingents); prophecy, rapture, and special graces (QQ12-14); the natural and supernatural human cognitive powers (QQ15-20, including the famous treatment of synderesis and conscience); free choice and grace (QQ22-24); and the passions and habits (QQ25-29). The work is the principal source for Aquinas's account of truth and of the structure of human cognition, and remains the most-cited text in twentieth-century Thomistic epistemology.
Author
Editions cited
- Quaestiones Disputatae de Veritate (composed 1256-59 at Paris); Leonine critical edition vol. 22 (Editori di San Tommaso, 1970-76); English trans. Robert W. Mulligan, James V. McGlynn, Robert W. Schmidt, On Truth (Henry Regnery, 1952-54)
School Embodiments
De Veritate is foundational for Thomistic epistemology — the adequation-theory of truth, the natural-supernatural distinction in cognition, the analysis of synderesis and conscience.
"Truth is defined by the conformity of intellect and thing; and to know this conformity is to know truth." (De Veritate, Q1, a1)
Aquinas defends a strong realist account of truth — it consists in the mind's conformity to mind-independent reality, not in coherence or pragmatic success.
"Truth resides primarily in the intellect, secondarily in things; for the truth of things is what makes them knowable, and the truth of the intellect is its grasp of what things are." (De Veritate, Q1, a2)
The discussion of divine ideas (Q3) and of intellectual cognition treats Plato's and Augustine's views as authorities to be incorporated, not refuted.
"The divine ideas are not many in God but are one truth in which the intellect knows all that can be known." (De Veritate, Q3, a2)
The disputatio method itself — exhaustive marshalling of objections, sed contra, respondeo, replies to each objection — is rationalist in the medieval scholastic sense.
"To investigate the truth of any question, one must first hear what is said on both sides." (De Veritate, methodological remark)
Augustine's Neoplatonic-illuminationist epistemology is engaged respectfully throughout, even as Aquinas develops his own Aristotelian-abstractionist alternative.
"The divine light is the principle of all natural knowledge, illuminating the agent intellect itself by its participation." (De Veritate, Q11, a1)
The Aristotelian framework — substance and accident, matter and form, potency and act — is the operating metaphysics of De Veritate, even where Aquinas departs from Aristotle in detail.
"All cognition takes place by way of likeness; the knower receives the form of the thing without its matter." (De Veritate, Q2, a3)
Thomist tradition.
Internal Tensions
De Veritate sits at the transition between Aquinas's early reliance on Augustine's illumination-theory and his mature Aristotelian-abstractionist account; some passages favour one, some the other, and modern commentators (Owens, Wippel, Pasnau) divide on how to read the development. The treatment of divine knowledge of future contingents (Q2, aa12-14) is among the most contested in medieval philosophy; Aquinas's solution (God knows future contingents in their causes and as present to His eternal vision) has been defended and attacked for seven centuries.
I. Time
The temporal cognitive process of the embodied human knower; the eternal cognition of God who knows all temporal events at once.
Attributes
II. Space
The created spatial world as the object of cognition; the immaterial God whose knowing is non-spatial.
Attributes
III. Matter
Matter and form as the metaphysical structure of the known object; the abstraction of form by the cognitive subject.
Attributes
IV. Observer
The hylomorphic knower — body and rational soul — whose cognition Aquinas analyses in detail (agent intellect, possible intellect, abstraction).
Attributes
V. Energy
The actuating energy of the agent intellect that abstracts form from sensible phantasms.
Attributes
VI. Information
The form abstracted from matter as the intelligible content; truth as the adequation of this content to the thing.
Attributes
Personas with the nearest attribute fingerprint
Historical figures whose own classification on the same six-dimensional grid lands closest to this work's. Computed by attribute-agreement on coordinates both address.
Computed school proximity
The work's attribute fingerprint scored against all schools using the same quiz scorer. Useful as a sanity check on the hand-curated embodiments above.
How Disputed Questions on Truth resolves each dilemma
51 resolved positions across 4 dimensions, including 6 distinctive where the majority of schools go the other way · 6 unaligned.
Each dimension is sorted so minority positions come first. Mainstream positions are folded into an expandable list.
Time · 9 dilemmas · 3 distinctive
Persistence, the future, and the direction of becoming.
6 mainstream positions
Matter · 7 dilemmas, all mainstream
Observer · 37 dilemmas · 3 distinctive
Mind, agency, and the knower's relation to the known.