# List of works by Thomas Aquinas

The collected works of Thomas Aquinas are being edited in the Editio Leonina (established 1879). As of 2014, 39 out of a projected 50 volumes have been published.
The works of Aquinas can be grouped into six categories as follows:
* Works written in direct connection to his teaching
** Seven systematic disputations (quaestiones disputatae), on:
*** Truth;
*** The union of the Incarnate Word;
*** The soul;
*** Spiritual creatures;
*** Virtues;
*** God’s power; and
*** Evil.
** Twelve quodlibetal disputations
* Philosophical commentaries
** Eleven commentaries on Aristotle;
** Two expositions of works by Boethius;
** Two expositions of works by Proclus
* Lesser tractates and disputations
** Five polemical works;
** Five expert opinions, or responsa;
** Fifteen letters on theological, philosophical, or political subjects;
** Ninety-nine Homilies Upon the Epistles and Gospels for Forty-nine Sundays of the Year
** A collection of glosses from the Church Fathers on the Gospels (Catena aurea)
* Systematic works (Summa Theologiae, Summa contra Gentiles, and commentary on Peter Lombard's Sentences)
* Biblical commentaries on Job, Psalms and Isaiah, Canticles and Jeremiah, John, Matthew, and on the epistles of Paul
** Nine exegeses of Scriptural books
* Liturgical works

## Editions

In 1570 the first edition of Aquinas's opera omnia, the so-called editio Piana (from Pius V, the Dominican pope who commissioned it), was produced at the studium of the Roman convent at Santa Maria sopra Minerva, the forerunner of the Pontifical University of Saint Thomas Aquinas, Angelicum. The critical edition of Aquinas's works is the ongoing edition commissioned by Pope Leo XIII (1882-1903), the so-called Leonine Edition. Abbé Migne published an edition of the Summa Theologiae, in four volumes, as an appendix to his Patrologiae Cursus Completus. English editions: Joseph Rickaby (London, 1872), J. M. Ashley (London, 1888).

## Works in chronological order

| Title | Date |
| De fallaciis ad quosdam nobiles artistas | 1245–1246 |
| Commentary on the Prophet Jeremiah (Expositio in Jeremiam prophetam) | 1248–52 (under Albert Magnus) |
| De propositionibus modalibus | by 1251 |
| On the Principles of Nature (De principiis naturae ad fratrem Sylvestrum) | c. 1255 |
| On Being and Essence (De ente et essentia, ad fratres socios) | 1252–1256 |
| Contra impugnantes Dei cultum et religionem | 1256 |
| Commentary on the Sentences of Peter Lombard (Scriptum super libros Sententiarum) | 1252–1256 |
| Two Sermons from MS Florence [Principium (?)] | 1256 (?) |
| Disputed Questions on Truth (Quaestiones disputatae de Veritate) | 1256–1259 |
| Commentary on the Gospel of St. Matthew (Expositio in evangelicum s. Mattaei) | 1256–1259 or 1269–1272 |
| Literal Commentary on Job (Expositio in Job ad litteram) | 1260 |
| Commentary on Boethius's Book De hebdomadibus (Expositio in librum Boethii De hebdomadibus) | c. 1260 |
| Commentary on Boethius's Book On the Trinity (Expositio super librum Boethii De Trinitate) | by 1261 |
| De articulis fidei et Ecclesiae sacramentis, ad archiepiscopum Panormitanum | c. 1261 |
| De emptione et venditione ad tempus | 1262 |
| Summa contra Gentiles (Tractatus de fide catholica, contra Gentiles [contra errores infidelium]) | 1261–1263 |
| Against the Errors of the Greeks, to Pope Urban IV (Contra errores Graecorum, ad Urbanum IV Pontificem Maximum) | 1263 |
| Sermon on the Holy Eucharist preached in Consistory before Pope Urban IV and the Cardinals | 1264 |
| Officium de festo Corporis Christi, ad mandatum Urbani Papae IV | 1264 |
| On the Reasons of the Faith against the Saracens, Greeks and Armenians, to the Cantor of Antioch (De rationibus fidei contra Saracenos, Graecos et Armenos, ad Cantorem Antiochiae) | 1261–1264 |
| The Golden Chain (Glossa (expositio) continua in Mattheum, Marcum, Lucam, Joannem [Catena aurea]) | 1263ff. |
| Summa Theologica | 1265–1273 |
| Responsio ad fr. Joannem Vercellensem, Generalem Magistrum Ordinis Praedicatorum, de articulis CVIII ex opere Petri de Tarentasia | by 1266 |
| Disputed Questions on the Soul (Quaestiones disputatae de Anima) | 1267 |
| On Kingship, to the King of Cyprus (De regno [De regimine principum), ad regem Cypri) | 1267 |
| Expositio in Dionysium De divinis nominibus | by 1268 |
| Expositio super primam decretalem "De fide catholica et sancta Trinitate" et super secundam "Damnamus autem" | 1259–1268 |
| Disputed Questions on the Power of God (Quaestiones disputatae de potentia Dei) | 1259–1268 |
| Commentary on Aristotle's Posterior Analytics (In libros posteriorum Analyticorum expositio) | c. 1268 |
| Commentary on Aristotle's De anima [On the Soul] (In libros De anima expositio) | c. 1268 |
| Commentary on Aristotle's On Sense and What Is Sensed (In librum De sensu et sensato expositio) | c. 1268 |
| Commentary of Aristotle's Memory and Recollection (In librum De memoria et reminiscentia expositio) | c. 1268 |
| De substantiis separatis, seu de angelorum natura, ad fr. Reginaldum, socium suum carissimum | c. 1268 |
| De secreto | by 1269 |
| Disputed Questions on Spiritual Creatures (Quaestiones disputatae de spiritualibus creaturis) | 1266–1269 |
| De perfectione vitae spiritualis | 1269 |
| Commentary on the Book Of Causes (Super librum De causis expositio) | by 1270 |
| On the Unity of the Intellect against the Averroists (De unitate intellectus, contra Averroistas) | 1270 |
| De perfectione vitae spiritualis | 1270 |
| Contra pestiferam doctrinam retrahentium pueros a religionis ingressu | 1270 |
| Sermons from MSS Madrid and Sevilla | 1270 |
| Two sermons from MS Paris | 1270 |
| Sermon on Christ the King from MS Soissons | 1270 |
| Commentary on the Eight Books of Physics (In octo libros Physicorum expositio) | 1268–1271 |
| De regimine Judaeorum, ad Ducissam Brabantiae | 1270–1271 |
| De aeternitate mundi, contra murmurantes | 1271 |
| Responsio ad fr. Joannem Vercellensem, Generalem Magistrum Ordinis Praedicatorum, de articulis XLII | 1271 |
| De motu cordis, ad Magistrum Philippum | 1270–1271 |
| De mixtione elementorum, ad Magistrum Philippum | c. 1271 |
| Responsio ad lectorem Venetum de articulis XXXVI [two versions] | c. 1271 |
| Commentary on the Prophet Isaiah (Expositio in Isaiam prophetam) | 1256–1259 or 1269–1272 |
| Four Exordia (Prothemata) of sermons from MS Angers | 1269–1272 |
| De forma absolutionis, ad Generalem Magistrum Ordinis | 1269–1272 |
| De occultis operationibus naturae, ad quendam militem ultramontanum | 1269–1272 |
| De sortibus ad Dominum Jacobum de ... (?) | 1269–1272 |
| Quaestiones disputatae de unione Verbi incarnati | 1269–1272 |
| Disputed Questions on Evil (Quaestiones disputatae de malo) | 1269–1272 |
| Disputed Questions on the Virtues (Quaestiones disputatae de virtutibus) | 1269–1272 |
| Commentary on the Gospel of John (Expositio in evangelium Joannis) | 1269–1272 |
| Commentary on Aristotle's Meteorology (In libros Meteorologicorum expositio) | 1269–1271, 1269–1272 or 1272–1273 |
| Commentary on Aristotle's On Interpretation (In libros Peri Hermeneias expositio) | 1269–1272 |
| Commentary on the Twelve Books of Metaphysics (In duodecim libros Metaphysicorum expositio) | 1270–1272 |
| Commentary on the Ten Books of [Nicomachean] Ethics (In decem libros Ethicorum expositio) | 1271–1272 |
| Commentary on Aristotle's Politics (In libros Politicorum expositio) | 1271–1272 |
| Quaestiones de quodlibet I-XII | 1256–1259, 1269–1272 |
| Commentary of the Epistles of St. Paul (Expositio in s. Pauli Epistolas) | 1259–1265 and 1272–1273 (?) |
| Commentary on the Psalms of David (In Psalmos Davidis expositio) | 1272–1273 |
| Commentary on Aristotle's On the Heavens and Earth (In libros De caelo et mundo expositio) | 1272–1273 |
| Commentary on Aristotle's On Generation and Corruption (In libros De generatione et corruptione expositio) | 1272–1273 |
| Lenten Sermon-Cycle delivered at Naples (57 vernacular sermons, e.g., On the Two Laws of Charity and the Ten Commandments [De duobos praeceptis caritatis et decem legis praeceptis]; Devotissima expositio super symbolum apostolorum; Expositio devotissima orationis dominicae) | 1273 |
| Devotissima expositio super salutatione angelica | 1269–1272 or 1273 |
| Compendium of Theology (Compendium theologiae ad fratrem Reginaldum socium suum carissimum) | c. 1273 (?) |
| To Bernard, Abbot of Monte Cassino (Ad Bernardum, abbatem Cassinensem) | 1274 |

## Works of uncertain date

* De iudiciis astrorum, ad quendam militem ultramontanum
* De modo studendi
* Commentary on the Song of Songs (Expositio in Canticum Canticorum)
* Commentary on the Lamentations of Jeremiah (Expositio in Threnos Jeremiae prophetae)
* Hymn: "Adoro te"
* Hymn: "Concede mihi misericors Deus"
* Hymn: "Tantum Ergo" from Pange Lingua, a Mediaeval Hymn
* Quaestio disputata utrum anima coniuncta cognoscat seipsam per essentiam
* Disputed Questions on the Immortality of the Soul (Quaestiones disputatae de immortalitate animae)
* Responsio ad lectorem Bisuntinum de articulis VI
* Three sermons from MS Paris
* Three sermons from MS Venice

## Works of uncertain authenticity

* De demonstratione
* De instantibus
* De natura accidentium
* De natura generis
* De natura materiae et dimensionibus interminalis
* De quatuor oppositis
* De natura verbi intellectus
* De principio individuationis
* Sermon: Beata Virgo nec originale nec mortale nec veniale peccatum incurrit, 1269–1272 or 1273