Library

Thomas Aquinas's De aeternitate mundi in the Leonine critical text (Opera omnia, t. XLIII, 1976).

Thomas Aquinas's De ente et essentia in the Leonine critical text (Opera omnia, t. XLIII, 1976), with an aligned English translation.

Thomas Aquinas's De principiis naturae in the Leonine critical text (Opera omnia, t. XLIII, 1976).

The Summa contra Gentiles (1259-1265) is St Thomas Aquinas's great apologetic and missionary work. Liber I of this edition reproduces the critical text of the Leonine Opera omnia, tomus XIII (Rome, 1918), with the commentary of Franciscus de Sylvestris Ferrariensis printed with the text.

The Summa contra Gentiles (1259-1265) is St Thomas Aquinas's great apologetic and missionary work. Liber II of this edition reproduces the critical text of the Leonine Opera omnia, tomus XIII (Rome, 1918), with the commentary of Franciscus de Sylvestris Ferrariensis printed with the text.

The Summa contra Gentiles (1259-1265) is St Thomas Aquinas's great apologetic and missionary work. Liber III of this edition reproduces the critical text of the Leonine Opera omnia, tomus XIV (Rome, 1926), with the commentary of Franciscus de Sylvestris Ferrariensis printed with the text.

The Summa contra Gentiles (1259-1265) is St Thomas Aquinas's great apologetic and missionary work. Liber IV of this edition reproduces the critical text of the Leonine Opera omnia, tomus XV (Rome, 1930), with the commentary of Franciscus de Sylvestris Ferrariensis printed with the text.

Thomas Aquinas's Summa theologiae, Prima Pars, is the first major movement of his mature theological synthesis, composed chiefly in the 1260s and completed at the end of the decade. It begins with sacred doctrine and treats God's existence, attributes, Trinity, creation, angels, providence, and human nature in a deliberately ordered sequence of questions and articles. The work's combination of revealed theology, Aristotelian philosophy, and disputational method made it one of the most influential texts in Western theology and philosophy, generating centuries of commentaries, including Cajetan's. Schola presents the Latin Leonine text.

Franciscus de Sylvestris Ferrariensis (1474-1528), Dominican Master General, wrote the classical commentary on the Summa contra Gentiles. Liber I of this edition reproduces the commentary as printed with the Leonine text of 1918, tomus XIII.

Franciscus de Sylvestris Ferrariensis (1474-1528), Dominican Master General, wrote the classical commentary on the Summa contra Gentiles. Liber II of this edition reproduces the commentary as printed with the Leonine text of 1918, tomus XIII.

Franciscus de Sylvestris Ferrariensis (1474-1528), Dominican Master General, wrote the classical commentary on the Summa contra Gentiles. Liber III of this edition reproduces the commentary as printed with the Leonine text of 1926, tomus XIV.

Franciscus de Sylvestris Ferrariensis (1474-1528), Dominican Master General, wrote the classical commentary on the Summa contra Gentiles. Liber IV of this edition reproduces the commentary as printed with the Leonine text of 1930, tomus XV.

Apologia de convenientia institutorum Romanae Ecclesiae cum evangelica libertate adversus Lutherum, de hoc pessime sentientem is a theological-polemical treatise written in the early years of the Reformation. It defends the compatibility of the institutions, authority, discipline, and ecclesiastical order of the Roman Church with evangelical freedom, directly opposing Martin Luther’s contrary position. The work belongs to the earliest Catholic theological responses to the Lutheran Reformation.

Cardinal Tommaso de Vio Cajetan's Commentaria in primam partem Summae theologiae is a sustained, article-by-article exposition of Aquinas's Prima Pars. Cajetan composed the commentary between 1507 and 1522 amid the Renaissance recovery and systematization of Thomism; it was subsequently printed alongside the Summa in the Leonine edition and became a standard lens through which later theologians read Aquinas. Its analyses of analogy, divine knowledge, creation, and the structure of sacred doctrine exemplify the technical method of early modern Thomist commentary. Schola presents the Latin text in the Leonine commentary tradition.

Catejan's treatise De subiecto naturalis philosophiae, according to the text found in the Opuscula Omnia Editionis Ludgunensis (1558), with minor edits by Charles De Koninck and R.P.E. Gaudron, O.F.M. (1939). The edits made by De Koninck and Gaudron have a note with the original Editio Lugdunensis text.

Cajetan's complete commentary on De ente et essentia, using the public-domain Michael de Maria 1907 edition as the production fallback witness, with an aligned English translation.

In this treatise, Cardinal Cajetan examines the foundations of the Catholic Church and the authority of the papacy, arguing against conciliarism and addressing the question of a heretical pope.

Melchor Cano's Latin treatise De locis theologicis. This Schola Thomistica text was prepared from Juan Belda Plans's BAC reading text and checked against The School of Salamanca's CC BY 4.0 transcription and aligned page images of the 1563 edition. Both sources are credited.

Domingo Báñez's sworn declaration and theological reply to Francisco Suárez's paper on free choice (Salamanca, 27 October 1594), in his own original Spanish with facing Schola English translation. The manuscript is fragmentary and breaks off mid-sentence.

Domingo Báñez's unpublished disputation with the Jesuits on whether the efficacy of prevenient grace is intrinsic and of itself or from man's free choice (circa 1599-1600), with his reply to five questions and the anonymous 1599 theological qualification. Latin with facing Schola English translation.

Dominicus Báñez, O.P.'s Scholastica commentaria in primam partem Summae Theologiae is a Salamanca-school commentary on the opening part of Aquinas's Summa. The first printing appeared at Salamanca in 1584, after Báñez's teaching at the Dominican studium and University of Salamanca; later editions and editorial continuations helped make the work a major witness to late sixteenth-century Thomism. Its close exegesis of Aquinas intersects the debates over divine grace, human freedom, predestination, and physical premotion that defined the de auxiliis controversy. Schola presents the Latin text from a 1934 Urbano edition; the catalogue's 1584 year identifies the original work, not the modern reprint.

Editorial notice: José Ángel García Cuadrado's scholarly introduction and bibliography to Q. 40 are available as a separate Spanish work under his own authorship, linked to this commentary. His Spanish translation of Q. 40 is attributed to him in the text metadata. Domingo Báñez's commentary on the Secunda Secundae of the Summa Theologiae. The work begins here with Q. 40, De bello, and is incomplete. Q. 40 is presented in Latin with José Ángel García Cuadrado's Spanish translation. Both languages are attributed separately in the text source metadata.

Domingo Banez's treatise on the concord of created free choice with efficacious grace (composed 1600): the Thomist answer to Molina. Latin with facing Schola English translation.

Diego Álvarez’s twelve-book treatise on divine grace and human free choice. This edition contains Book I: the prooemium and five preliminary disputations on Pelagian and Semi-Pelagian teaching, Manichaean and Reformation positions, Catholic theologians, and the authority of Augustine and Thomas Aquinas. Latin from the Rome 1610 edition, with a new English translation.

Prima pars artis Logicae (formal logic) of the Cursus Philosophicus Thomisticus of John of St. Thomas (Joannes a Sancto Thoma), from the Reiser edition (Marietti, Turin, 1930), Reiser tomus I, pars prima.

Prima pars philosophiae naturalis (de ente mobili in communi) of the Cursus Philosophicus Thomisticus of John of St. Thomas (Joannes a Sancto Thoma), from the Reiser edition (Marietti, Turin, 1930), Reiser tomus II-I, pars prima.

Secunda pars artis Logicae of the Cursus Philosophicus Thomisticus of John of St. Thomas (Joannes a Sancto Thoma), from the Reiser edition (Marietti, Turin, 1930), Reiser tomus I, pars secunda.

Charles René Billuart, O.P.'s Summa summae S. Thomae sive compendium theologiae (Liège, 1754) is his six-volume abridgment of the larger Summa S. Thomae hodiernis academiarum moribus accommodata (1746–1751). It condenses Aquinas's order and teaching into a reference manual while retaining the Dominican's characteristic distinctions, scholastic proofs, and historical material. The compendium belongs to the eighteenth-century consolidation of post-Tridentine Thomist education and helped carry Billuart's influential reading of Aquinas into later schools. Schola presents the Latin text with an English translation from its public-domain source.

Charles-René Billuart, O.P.'s Summa summae S. Thomae sive compendium theologiae, Tomus II, treats human acts, passions and virtues, sin, law, and grace in the Thomistic manual tradition. Schola presents the complete Latin Tome II from the Paris Vives edition of 1884.

Francisco Marín-Sola, O.P.'s La evolución homogénea del dogma católico (Madrid–Valencia, 1923) is a large Spanish Dominican account of how Catholic doctrine can develop without becoming a different faith. Drawing on Aquinas and the wider scholastic tradition, it distinguishes homogeneous doctrinal growth from modernist or merely historical change and analyzes the role of theological inference, ecclesial teaching, and controversies about grace. The work became an important reference point in twentieth-century Thomist discussions of doctrinal development and remains a key primary witness to Spanish neo-scholastic theology. Schola presents Spanish and English texts from its documented source and translation arrangement; the copyrighted Sauras introductory essay is not included.

Benedictus Henricus Merkelbach, O.P.'s Summa theologiae moralis ad mentem D. Thomae et ad normam iuris novi, volume I (De principiis), is a twentieth-century manual of Catholic moral theology. Published in Paris by Desclée de Brouwer in 1935, it organizes fundamental moral principles—human acts, conscience, law, sin, merit, and related questions—through a Thomistic framework updated to the canon-law context of the period. The three-volume Summa stands as a representative Dominican manual for seminary and academic formation, while later moral theology reassessed the manual tradition. Schola presents the Latin text with an English translation.

The Cursus Theologicus of the Discalced Carmelites of Salamanca (the 'Salmanticenses'), tomus I, in the 1870 Paris reprint. Contains the Prooemium and the three great treatises of this volume: De principio individuationis (a digression on the principle of individuation), De Visione Dei (in quaest. 12), and De Scientia Dei (in quaest. 14, including the extended rejection of middle knowledge). The edition prints St Thomas's Prima Pars text alongside; that text is not republished here.