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

In 1985 the Italian Thomist , O.P., proposed the following classification: systematic works (In quattuor libros sententiarum, Summa contra Gentiles, Summa Theologiae, Compendium Theologiae); philosophical essays (De ente et essentia, De regimine principium; quaestiones disputatae (De veritate, De potentia, De malo, De anima, De virtutibus); free questions (which emerged during public disputes held in the Easter holidays at the University of Paris) (Quodlibeta VI-XI, Quodlibeta I-V e XII); philosophical commentaries (Physics e Metaphysics by Aristoteles, Ethica Nicomachea, Politica, Analytica posteriora, De coelo et mundo, De anima, De intepretatione; De hebdomadibus and the Boethius' De Trinitate; De divinis nominibus by Pseudo-Dionysius the Areopagite), the Neoplatonic origin of the Liber de causis (which Aquinas firstly recognized); biblical commentaries (Super Job ad litteram, Super Isaiam, Super Psalmos, Super Ieramiam,Expositio continua super IV Evangelia, also known asCatena aurea, Lectura super Matheum, Super Epistulas Pauli, Lectura Super Johannem).Father Battista Mondin, O.P., Il sistema filosofico di Tommaso d'Aquino. Per una lettura attuale della filosofia tomista, Editrice Massimo, Milan (February 1985), 1st edition, ISBN 88-7030-462-0, pp. 18-19

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

Notes

References I. T. Eschmann, O.P., 1956 catalog of Thomas's works

External links

Corpus Thomisticum, his complete works in Latin Complete works of St. Thomas Aquinas Thomas Aquinas works at Somni: Aurea expositio sancti Pauli apostoli ad Corinthios. Naples, 1491 Beati Thomae Aquinatis De ente et essentia. Italy, made between 1477 and 1485. It contains: De ente et essentia, Rescriptum super libro De ente et essentia and De fallaciis. Ad regem Cypri de rege et regno. Italy, 1486 Brevis Compilatio theologie edita a fratre Thoma de Aquino. Italy, made before 1487. It contains: Compendium theologiae. Prima pars secunde partis Summe Theologie beati Thome de Aquino. Naples, 1484. It contains: Prima pars secunde partis de la Summa Theologica. Quaestiones disputatae. Naples, made between 1480 and 1493. It contains some of the Quaestiones disputatae of Thomas Aquinas: De spiritualibus creaturis, De anima, De unione Verbi and De virtutibus. Thome de Aquino commentum in Marci Evangelium. Naples, 1491