Opera Omnia Sancti Thomae (Complete Works of Thomas Aquinas)
Summa Theologiae in the Dominican Fathers' public-domain English translation (1920s, via newadvent.org) and Summa Contra Gentiles in Joseph Rickaby SJ's translation (Of God and His Creatures, London 1905, via CCEL). Latin parallel (Vivès edition, Paris 1871-1880) rendered inline below each English passage. Eight Disputed Questions and Quodlibet works now carry Vivès Latin (project-original English in progress). The remaining 43 works are queued; see /about/translations/.
Source context· Greco-Christian stream · Greco-Latin cultural age
- Stream
- Greco-Christian
- Cultural age
- Greco-Latin (4th post-Atlantean cultural age)
- Composed
- c. 1250 CE
Summa Theologiae
Summa Theologiae — the great pedagogical Summa
Aquinas's pedagogical masterpiece, composed 1265-1273 for beginners in theology — though by Aquinas's standard of beginner. Three parts: Prima Pars (God and creation), Prima Secundae + Secunda Secundae (the moral life and the virtues), Tertia Pars (Christ, the sacraments — incomplete at Aquinas's death). The architectonic crown of scholastic theology.
506 sections · 4,222,869 words
Read →Summa Contra Gentiles
Summa contra Gentiles — the missionary Summa
Aquinas's four-book treatise written c. 1259-1265 in part for the use of Dominican missionaries to Muslims and Jews — arguing for the truths of the Christian faith from principles accessible to philosophical reason (Books I-III) and from Scripture (Book IV). Often called the Summa Philosophica in contrast to the Summa Theologiae.
4 sections · 329,088 words
Read →Disputed Questions On Truth
Disputed Questions On Truth
Quaestiones Disputatae de Veritate — Aquinas's earliest extended disputed-question series (1256-1259), 29 questions covering the metaphysics of truth, knowledge, the rational creature, conscience, providence, prophecy, and grace. Latin from the Vivès edition (Paris 1871-1880); English in progress through the project translation pipeline.
29 sections · 555,556 words
Read →Disputed Questions On the Power of God
Disputed Questions On the Power of God
Quaestiones Disputatae de Potentia Dei — ten questions on the divine power, creation ex nihilo, the procession of creatures, the Trinity, and the divine simplicity (c. 1265-1266, Rome). Latin from the Vivès edition; English in progress.
1 sections · 416,838 words
Read →Disputed Questions On Evil
Disputed Questions On Evil
Quaestiones Disputatae de Malo — sixteen questions on the ontology and ethics of evil, sin, the will, the passions, and the demons (c. 1266-1272, Paris). Latin from the Vivès edition; English in progress.
1 sections · 415,167 words
Read →Disputed Questions On the Virtues
Disputed Questions On the Virtues
Quaestiones Disputatae de Virtutibus — five disputed questions on virtue in common, on charity, on fraternal correction, on hope, and on the cardinal virtues (c. 1271-1272). Latin from the Vivès edition; English in progress.
1 sections · 197,334 words
Read →Disputed Question On Spiritual Creatures
Disputed Question On Spiritual Creatures
Quaestio Disputata de Spiritualibus Creaturis — a single eleven-article disputed question on the angels and the human rational soul as spiritual substances (c. 1267-1268, Italy). Latin from the Vivès edition; English in progress.
1 sections · 54,171 words
Read →On Buying and Selling on Credit
De emptione et venditione ad tempus — Aquinas's short letter to James of Viterbo on selling on credit (usury). English: O'Rahilly 1928 (public domain, pre-1929), verbatim and quotable. No parallel Latin edition is hosted for this work.
1 sections · 929 words
Read →Disputed Question On the Soul
Disputed Question On the Soul
Quaestio Disputata de Anima — a single twenty-one-article disputed question on the human soul: its substantial unity, its relation to the body, its faculties, and its state after death (c. 1265-1266, Italy). Latin from the Vivès edition; English in progress.
1 sections · 89,298 words
Read →Disputed Question On the Union of the Incarnate Word
Disputed Question On the Union of the Incarnate Word
Quaestio Disputata de Unione Verbi Incarnati — a single five-article disputed question on the hypostatic union of divine and human nature in Christ (c. 1272, Paris). Latin from the Vivès edition; English in progress.
1 sections · 23,313 words
Read →Quodlibetal Questions I-XII
Quodlibetal Questions I-XII
Quaestiones de Quolibet — twelve sets of quodlibetal questions raised by students and disputed by Aquinas in Advent and Lent (Quodlibets I-VI from his second Paris regency 1269-1272; VII-XII from earlier teaching periods). Latin from the Vivès edition; English in progress.
1 sections · 291,118 words
Read →Commentary on the Posterior Analytics
Expositio libri Posteriorum Analyticorum — Aquinas's lectio-by-lectio commentary on Aristotle's Posterior Analytics, the treatise on demonstrative science: what a demonstration is, what premises it requires, and how first principles are known (c. 1270, Paris).
1 sections · 184,625 words
Read →Commentary on the Physics
Commentaria in octo libros Physicorum — Aquinas's commentary on Aristotle's Physics, the foundational treatise on nature, motion, place, time, and the unmoved mover (c. 1268-1269, Italy/Paris).
1 sections · 404,860 words
Read →Commentary on the Metaphysics
Sententia libri Metaphysicae — Aquinas's lecture-by-lecture commentary on Aristotle's Metaphysics, Books I–XII (c. 1270-1272).
12 sections · 481,378 words
Read →Commentary on the Soul (De Anima)
Sentencia libri De anima — Aquinas's commentary on Aristotle's De Anima, on the soul as the form of the living body, its powers (nutritive, sensitive, intellective), and the intellect (c. 1267-1268, Italy).
1 sections · 217,660 words
Read →Commentary on the Nicomachean Ethics
Sententia Libri Ethicorum — Aquinas's exposition of Aristotle's Nicomachean Ethics, on happiness, virtue, friendship, and the contemplative life (c. 1271-1272, Paris). Ten books, cited by book/lectio/numerus. Latin from the Vivès edition; English in progress.
1 sections · 464,383 words
Read →Catena Aurea (Golden Chain)
Catena Aurea ('Golden Chain') — Aquinas's continuous gloss on the four Gospels, woven verbatim from the Greek and Latin Church Fathers (c. 1262-1268).
89 sections · 1,112,448 words
Read →Compendium of Theology
Compendium theologiae — Aquinas's unfinished summary of the faith for Brother Reginald, structured on faith, hope, and charity (c. 1265-1273).
1 sections · 103,054 words
Read →Commentary on Aristotle's On Interpretation
Expositio libri Peryermenias — Aquinas's (unfinished) commentary on Aristotle's On Interpretation, on the proposition, enunciation, truth and falsity, and future contingents (c. 1270-1271).
1 sections · 96,994 words
Read →The Mendicant-Defence Trilogy
The three treatises in which Aquinas defends the mendicant religious orders (c. 1256-1271): Contra Impugnantes, De Perfectione Vitae Spiritualis, and Contra Retrahentes.
3 sections · 157,107 words
Read →The Catechetical Instructions
Aquinas's vernacular Lenten conferences catechizing the faithful (Naples, 1273).
4 sections · 60,730 words
Read →Commentary on Boethius's De Trinitate
Super Boethium De Trinitate — Aquinas's commentary on Boethius's theological tractate, on faith and reason and the division of the sciences (c. 1257-1259).
1 sections · 60,752 words
Read →Treatise on Separate Substances
De substantiis separatis — Aquinas's (unfinished) treatise on the angels, engaging Plato, Aristotle, Avicebron, and the Neoplatonists on the nature of separate substances (c. 1271-1273).
1 sections · 30,801 words
Read →Summa Contra Gentiles
Summa contra Gentiles — Aquinas's four-book demonstrative synthesis of the truths of faith for a mixed audience (c. 1259-1265).
4 sections · 210,858 words
Read →JSON: /api/sources/opera-omnia-aquinas/index.json · Back to Sources.