Fish Eaters: The Whys and Hows of Traditional Catholicism

``Where the Bishop is, there let the multitude of believers be;
even as where Jesus is, there is the Catholic Church'' Ignatius of Antioch, 1st c. A.D

Doctors of the Church


A "Doctor of the Church" is an individual singled out for the extraordinary advantages the Church has received from his teachings. To receive such a title, a person must have exhibited "eminens doctrina, insignis vitae sanctitas, et Ecclesiae declaratio" (i.e. eminent learning, a high degree of sanctity, and proclamation by the Church) and not be a marytr or Confessor (someone who died or suffered for the Faith, respectively).

Early on, this proclamation was given to SS. Gregory the Great, Ambrose, Augustine, and Jerome in the West, and to SS. John Chrysostom, Basil, and Gregory Nanzianzus in the East. The Feasts of these Saints were made obligatory in their respective Churches (a collective Feast for all three was later instituted in the East).

Though Pope Benedict XIV (1675-1758) wrote that declarations of "Doctor" should be made by the Pope or by a general Council, decrees are, in practice, made by the Pope after the Congregation for the Causes of the Saints (formerly the Congregation of Sacred Rites) examines the writings of the proposed Doctor. Such decrees aren't infallible, and they don't indicate that the Doctors never erred in their works, but they show the great esteem in which the Church holds those who hold the title, and allow for special Masses (In Medio Ecclesiae) to be offered by the Universal Church in their honor.

There are thirty-six Doctors of the Church. They are listed here below, in order of the dates of their receiving the title. Click on the book icons next to their names to be shown lists of their works, as taken from Wikipedia, the Catholic Encyclopedia, and other sources. Check the Catholic library here and the relevant pages at the Catholic Encyclopedia offsite to find some of these works:

1.  St. Gregory the Great, Doctor of the Unity of the Church, 540-604   
2. St. Ambrose, Patron of the Veneration of Mary, 340-397
3.  St. Augustine, Doctor of Grace, 354-430
4. St. Jerome, Father of Biblical Science, 347-420
5. St. Thomas Aquinas, Angelic Doctor, 1225-1274
6. St. John Chrysostom, Golden Mouthed, 347-407
7.  St. Basil the Great, Father of Eastern Monasticism, 330-379
8.  St. Gregory of Nanzianzus, Theologian, 329-389
9. St. Athanasius, Father of Orthodoxy, 298-373
10. St. Bonaventure, Seraphic Doctor, 1221-1274
11. St. Anselm, Magnificent Doctor, 1033/34-1109
12. St. Isidore of Seville, Schoolmaster of the Middle Ages, 560-636
13. St. Peter Chrysologus, 406-450
14. St. Leo the Great, Doctor of the Church's Unity, 400-461
15. St. Peter Damian, Monitor to the Popes, 1007-1072
16. St. Bernard of Clairvaux, Mellifluous Doctor, 1090-1153
17. St. Hilary of Poitiers, Doctor of the Divinity of Christ, 300-367
18. St. Alphonsus Liguori, Most Zealous Doctor, 1696-1787
19. St. Francis de Sales, Doctor of Charity, 1567-1622
20. St. Cyril of Alexandria, Doctor of the Incarnation, 376-444
21. St. Cyril of Jerusalem, Doctor of Catechesis, 315-386 
22. St. John Damascene, Doctor of Christian Art, 676-749
23. St. Bede the Venerable, Doctor of the English, 672-735
24. St. Ephrem, Harp of the Holy Ghost, 306-373
25. St. Peter Canisius, Doctor of the Catechism, 1521-1597
26. St. John of the Cross, Mystical Doctor, 1542-1591
27. St. Robert Bellarmine, Patron of Catechists, 1542-1621
28. St. Albertus Magnus,  Universal Doctor, 1193-1280
29. St. Anthony of Padua, Evangelical Doctor, 1195-1231
30. St. Lawrence of Brindisi, Apostolic Doctor, 1559-1619
31. St. Teresa of Avila, Doctor of Prayer, 1515-1582
32. St. Catherine of Siena, Mystic of the Incarnate Word, 1347-1380
33. St. Therese of Lisieux, Doctor of Merciful Love, 1873-1897
34. St. John of Avila, Apostle of Andalusia, 1500-1569
35. St.  Hildegard of Bingen, Sybil of the Rhine, 1098-1179
36. St. Gregory of Narek, Armenian Mystic, 951-1003/11
37. St. Irenaeus of Lyon, Doctor of Unity, ca. 130 - ca. 202

Their Works:

St. Gregory the Great
  • Commentary on Job
  • Liber regulae pastoralis (Book of Pastoral Rule)
  • Dialogues
  • Sermons
  • In librum primum regum exposito (Commentary on I Kings)
  • 854 letters
St. Ambrose
  • De fide ad Gratianum Augustum (On Faith, to Gratian Augustus)
  • De Officiis Ministrorum (On the Offices of Ministers, an ecclesiastical handbook modeled on Cicero's De Officiis.[43])
  • De Spiritu Sancto (On the Holy Ghost)
  • De incarnationis Dominicae sacramento (On the Sacrament of the Incarnation of the Lord)
  • De mysteriis (On the Mysteries)
  • Expositio evangelii secundum Lucam (Commentary on the Gospel according to Luke)
  • De bono mortis (Death as a Good)
  • De fuga saeculi (Flight From the World)
  • De institutione virginis et sanctae Mariae virginitate perpetua ad Eusebium (On the Birth of the Virgin and the Perpetual Virginity of Mary)
  • De Nabuthae (On Naboth)
  • De paenitentia (On Repentance)
  • De paradiso (On Paradise)
  • De sacramentis (On the Sacraments)
  • De viduis (On Widows)
  • De virginibus (On Virgins)
  • De virginitate (On Virginity)
  • Exhortatio virginitatis (Exhortation to Virginity)
  • De sacramento regenerationis sive de philosophia (On the Sacrament of Rebirth, or, On Philosophy [fragments])
  • The Hexaemeron (Six Days of Creation)
  • De Helia et ieiunio (On Elijah and Fasting)
  • De Iacob et vita beata (On Jacob and the Happy Life)
  • De Abraham; De Cain et Abel
  • De Ioseph (Joseph)
  • De Isaac vel anima (On Isaac, or The Soul)
  • De Noe (Noah)
  • De interpellatione Iob et David (On the Prayer of Job and David)
  • De patriarchis (On the Patriarchs)
  • De Tobia (Tobit)
  • Explanatio psalmorum (Explanation of the Psalms)
  • Explanatio symboli (Commentary on the Symbol).
  • De obitu Theodosii; De obitu Valentiniani; De excessu fratris Satyri (funeral orations)
  • 91 letters
  • A collection of hymns on the Creation of the Universe.
  • Fragments of sermons
  • Ambrosiaster or the "pseudo-Ambrose," commentary on St. Paul's Epistles attributed to Ambrose.
St. Augustine
  • On the Beautiful and the Fitting (Latin: De Pulchra et Apto, 380)
  • On Christian Doctrine (Latin: De doctrina Christiana, 397–426)
  • Confessions (Confessiones, 397–398)
  • The City of God (De civitate Dei, begun c. 413–426)
  • On the Trinity (De trinitate, 400–416)
  • On Free Choice of the Will (De libero arbitrio)
  • Enchiridion (Enchiridion ad Laurentium, seu de fide, spe et caritate)
  • Retractationes (Retractations): At the end of his life (c. 426–428)
  • The Literal Meaning of Genesis (De Genesi ad litteram)
  • On the Catechising of the Uninstructed (De catechizandis rudibus)
  • On Faith and the Creed (De fide et symbolo)
  • Concerning Faith of Things Not Seen (De fide rerum invisibilium)
  • On the Profit of Believing (De utilitate credendi)
  • On the Creed: A Sermon to Catechumens (De symbolo ad catechumenos)
  • On Continence (De continentia)
  • On the teacher (De magistro, a dialogue between Augustine and his son Adeodatus)
  • On the Good of Marriage (De bono coniugali)
  • On Holy Virginity (De sancta virginitate)
  • On the Good of Widowhood (De bono viduitatis)
  • On Lying (De mendacio)
  • To Consentius: Against Lying (Contra mendacium [ad Consentium])
  • To Quodvultdeus, On Heresies (De haeresibus ad Quodvultdeum)
  • On the Work of Monks (De opere monachorum)
  • On Patience (De patientia)
  • On Care to be Had For the Dead (De cura pro mortuis gerenda)
  • On the Morals of the Catholic Church and on the Morals of the Manichaeans (De moribus ecclesiae catholicae et de moribus Manichaeorum)
  • On Two Souls, Against the Manichaeans (De duabus animabus [contra Manichaeos])
  • Acts or Disputation Against Fortunatus the Manichaean ([Acta] contra Fortunatum [Manichaeum])
  • Against the Epistle of Manichaeus Called Fundamental (Contra epistulam Manichaei quam vocant fundamenti)
  • Reply to Faustus the Manichaean (Contra Faustum [Manichaeum])
  • Concerning the Nature of Good, Against the Manichaeans (De natura boni contra Manichaeos)
  • On Baptism, Against the Donatists (De baptismo [contra Donatistas])
  • The Correction of the Donatists (De correctione Donatistarum)
  • On Merits and Remission of Sin, and Infant Baptism (De peccatorum meritis et remissione et de baptismo parvulorum)
  • On the Spirit and the Letter (De spiritu et littera)
  • On Nature and Grace (De natura et gratia)
  • On Man's Perfection in Righteousness (De perfectione iustitiae hominis)
  • On the Proceedings of Pelagius (De gestis Pelagii)
  • On the Grace of Christ, and on Original Sin (De gratia Christi et de peccato originali)
  • On Marriage and Concupiscence (De nuptiis et concupiscientia)
  • On the Nature of the Soul and its Origin (De natura et origine animae)
  • Against Two Letters of the Pelagians (Contra duas epistulas Pelagianorum)
  • On Grace and Free Will (De gratia et libero arbitrio)
  • On Rebuke and Grace (De correptione et gratia)
  • On the Predestination of the Saints (De praedestinatione sanctorum)
  • On the Gift of Perseverance (De dono perseverantiae)
  • Our Lord's Sermon on the Mount (De sermone Domini in monte)
  • On the Harmony of the Evangelists (De consensu evangelistarum)
  • In evangelium Ioannis, 1050–1100 ca., Biblioteca Medicea Laurenziana, Florence
  • Treatises on the Gospel of John (In Iohannis evangelium tractatus)
  • Soliloquies (Soliloquiorum libri duo)
  • Enarrations, or Expositions, on the Psalms (Enarrationes in Psalmos)
  • On the Immortality of the Soul (De immortalitate animae)
  • Answer to the Letters of Petilian, Bishop of Cirta (Contra litteras Petiliani)
  • Against the Academics (Contra Academicos)
  • On eighty-three various questions (De diversis quaestionibus octaginta tribus, 396)
  • Sermons, among which a series on selected lessons of the New Testament
  • Our Lord's Sermon on the Mount
  • Homilies, among which a series on the First Epistle of John (In Epistolam Joannis Ad Parthos Tractatus Decem)
  • On Music (De musica)
  • On Order (De Ordine)
St. Jerome
  •  Letters
  •  The Perpetual Virginity of Blessed Mary
  •  To Pammachius Against John of Jerusalem
  •  The Dialogue Against the Luciferians
  •  The Life of Malchus, the Captive Monk
  •  The Life of S. Hilarion
  •  The Life of Paulus the First Hermit
  •  Against Jovinianus
  •  Against Vigilantius
  •  Against the Pelagians
  •  Prefaces
  •  De Viris Illustribus (Illustrious Men)
  •  Apology for himself against the Books of Rufinus
St. Thomas Aquinas
  • De fallaciis ad quosdam nobiles artistas
  • Commentary on the Prophet Jeremiah (Expositio in Jeremiam prophetam)
  • De propositionibus modalibus
  • On the Principles of Nature (De principiis naturae ad fratrem Sylvestrum)
  • On Being and Essence (De ente et essentia, ad fratres socios)
  • Contra impugnantes Dei cultum et religionem
  • Commentary on the Sentences of Peter Lombard (Scriptum super libros Sententiarum)
  • Two Sermons from MS Florence [Principium (?)]
  • Disputed Questions on Truth (Quaestiones disputatae de Veritate)
  • Commentary on the Gospel of St. Matthew (Expositio in evangelicum s. Mattaei)
  • Literal Commentary on Job (Expositio in Job ad litteram)
  • Commentary on Boethius's Book De hebdomadibus (Expositio in librum Boethii De hebdomadibus)
  • Commentary on Boethius's Book On the Trinity (Expositio super librum Boethii De Trinitate)
  • De articulis fidei et Ecclesiae sacramentis, ad archiepiscopum Panormitanum
  • De emptione et venditione ad tempus
  • Summa contra Gentiles (Tractatus de fide catholica, contra Gentiles [contra errores infidelium])
  • Against the Errors of the Greeks, to Pope Urban IV (Contra errores Graecorum, ad Urbanum IV Pontificem Maximum)
  • Sermon on the Holy Eucharist preached in Consistory before Pope Urban IV and the Cardinals
  • Officium de festo Corporis Christi, ad mandatum Urbani Papae IV
  • On the Reasons of the Faith against the Saracens, Greeks and Armenians, to the Cantor of Antioch (De rationibus fidei contra Saracenos, Gracos et Armenos, ad Cantorem Antiochiae)
  • Catena Aurea ("The Golden Chain"):Glossa (expositio) continua in Mattheum, Marcum, Lucam, Joannem
  • Summa Theologica
  • Responsio ad fr. Joannem Vercellensem, Generalem Magistrum Ordinis Praedicatorum, de articulis CVIII ex opere Petri de Tarentasia
  • Disputed Questions on the Soul (Quaestiones disputatae de Anima)
  • On Kingship, to the King of Cyprus (De regno [De regimine principum), ad regem Cypri)
  • Expositio in Dionysium De divinis nominibus
  • Expositio super primam decretalem "De fide catholica et sancta Trinitate" et super secundam "Damnamus autem"
  • Disputed Questions on the Power of God (Quaestiones disputatae de potentia Dei)
  • Commentary on Aristotle's Posterior Analytics (In libros posteriorum Analyticorum expositio)
  • Commentary on Aristotle's De anima [On the Soul] (In libros De anima expositio)
  • Commentary on Aristotle's On Sense and What Is Sensed (In librum De sensu et sensato expositio)
  • Commentary of Aristotle's Memory and Recollection (In librum De memoria et reminiscentia expositio)
  • De substantiis seperatis, seu de angelorum natura, ad fr. Reginaldum, socium suum carissimum
  • De secreto
  • Disputed Questions on Spiritual Creatures (Quaestiones disputatae de spiritualibus creaturis)
  • De perfectione vitae spiritualis
  • Commentary on the Book Of Causes (Super librum De causis expositio)
  • On the Unity of the Intellect against the Averroists (De unitate intellectus, contra Averroistas)
  • De perfectione vitae spiritualis
  • Contra pestiferam doctrinam retrahentium pueros a religionis ingressu
  • Sermons from MSS Madrid and Sevilla
  • Two sermons from MS Paris
  • Sermon on Christ the King from MS Soissons
  • Commentary on the Eight Books of Physics (In octo libros Physicorum expositio)
  • De regimine Judaeorum, ad Ducissam Brabantiae
  • De aeternitate mundi, contra murmurantes
  • Responsio ad fr. Joannem Vercellensem, Generalem Magistrum Ordinis Praedicatorum, de articulis XLII
  • De motu cordis, ad Magistrum Philippum
  • De mixtione elementorum, ad Magistrum Philippum
  • Responsio ad lectorem Venetum de articulis XXXVI [two versions]
  • Commentary on the Prophet Isaiah (Expositio in Isaiam prophetam)
  • Four Exordia (Prothemata) of sermons from MS Angers
  • De forma absolutionis, ad Generalem Magistrum Ordinis
  • De occultis operationibus naturae, ad quendam militem ultramontanum
  • De sortibus ad Dominum Jacobum de ... (?)
  • Quaestiones disputatae de unione Verbi incarnati
  • Disputed Questions on Evil (Quaestiones disputatae de malo)
  • Disputed Questions on the Virtues (Quaestiones disputatae de virtutibus)
  • Commentary on the Gospel of John (Expositio in evangelium Joannis)
  • Commentary on Aristotle's Meteorology (In libros Meteorologicorum expositio)
  • Commentary on Aristotle's On Interpretation (In libros Peri Hermeneias expositio)
  • Commentary on the Twelve Books of Metaphysics (In duodecim libros Metaphysicorum expositio)
  • Commentary on the Ten Books of [Nicomachean] Ethics (In decem libros Ethicorum expositio)
  • Commentary on Aristotle's Politics (In libros Politicorum expositio)
  • Quaestiones de quodlibet I-XII
  • Commentary of the Epistles of St. Paul (Expositio in s. Pauli Epistolas)
  • Commentary on the Psalms of David (In Psalmos Davidis expositio)
  • Commentary on Aristotle's On the Heavens and Earth (In libros De caelo et mundo expositio)
  • Commentary on Aristotle's On Generation and Corruption (In libros De generatione et corruptione expositio)
  • 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)
  • Devotissima expositio super salutatione angelica
  • Compendium of Theology (Compendium theologiae ad fratrem Reginaldum socium suum carissimum)
  • To Bernard, Abbot of Monte Cassino (Ad Bernardum, abbatem Cassinensem)
  • 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
  • De demonstratione (disputed)
  • De instantibus (disputed)
  • De natura accidentium (disputed)
  • De natura generis (disputed)
  • De natura materiae et dimensionibus interminalis (disputed)
  • De quatuor oppositis (disputed)
  • De natura verbi intellectus (disputed)
  • De principio individuationis (disputed)
  • Sermon: Beata Virgo nec originale nec mortale nec veniale peccatum incurrit (disputed)
St. John Chrysostom
  • Homilies on the Gospel of St. Matthew
  • Homilies on Acts
  • Homilies on Romans
  • Homilies on First Corinthians
  • Homilies on Second Corinthians
  • Homilies on Ephesians
  • Homilies on Philippians
  • Homilies on Colossians
  • Homilies on First Thessalonians
  • Homilies on Second Thessalonians
  • Homilies on First Timothy
  • Homilies on Second Timothy
  • Homilies on Titus
  • Homilies on Philemon
  • Commentary on Galatians
  • Homilies on the Gospel of John
  • Homilies on the Epistle to the Hebrews
  • Homilies on the Statues
  • No One Can Harm the Man Who Does Not Injure Himself
  • Two Letters to Theodore After His Fall
  • Letter to a Young Widow
  • Homily on St. Ignatius
  • Homily on St. Babylas
  • Homily Concerning "Lowliness of Mind"
  • Instructions to Catechumens
  • Three Homilies on the Power of Satan
  • Homily on the Passage "Father, if it be possible . . ."
  • Homily on the Paralytic Lowered Through the Roof
  • Homily on the Passage "If your enemy hunger, feed him."
  • Homily Against Publishing the Errors of the Brethren
  • First Homily on Eutropius
  • Second Homily on Eutropius (After His Captivity)
  • Four Letters to Olympias
  • Letter to Some Priests of Antioch
  • Correspondence with Pope Innocent I
  • On the Priesthood
St. Basil the Great
  • De Spiritu Sancto
  • Nine Homilies of Hexaemeron
  • Lettersady
St. Gregory of Nanziansuz
  • Orations
  • Letters
St. Athanasius
  • Against the Heathen
  • On the Incarnation of the Word
  • Deposition of Arius
  • Statement of Faith
  • On Luke 10:22 (Matthew 11:27)
  • Circular Letter
  • Apologia Contra Arianos
  • De Decretis
  • De Sententia Dionysii
  • Vita S. Antoni (Life of St. Anthony)
  • Ad Episcopus Aegypti et Libyae
  • Apologia ad Constantium
  • Apologia de Fuga
  • Historia Arianorum
  • Four Discourses Against the Arians
  • De Synodis
  • Tomus ad Antiochenos
  • Ad Afros Epistola Synodica
  • Historia Acephala
  • Letters
St. Bonaventure
  • Bonaventure Texts in Translation Series, St. Bonaventure, NY, Franciscan Institute Publications (15 volumes):

    • On the Reduction of the Arts to Theology, Translation, Introduction and Commentary by Zachary Hayes, OFM, vol. 1, 1996.
    • Journey of the Soul into God - Itinerarium Mentis in Deum translation and Introduction by Zachary Hayes, OFM, and Philotheus Boehner, OFM, vol. 2, 2002. ISBN 978-1-57659-044-7
    • Disputed Questions on the Mystery of the Trinity, translated by Zachary Hayes, vol. 3, 1979. ISBN 978-1-57659-045-4.
    • Disputed Questions on the Knowledge of Christ, translated by Zachary Hayes, vol. 4, 1992.
    • Writings Concerning the Franciscan Order, translated by Dominic V. Monti, OFM, vol. 5, 1994.
    • Collations on the Ten Commandments, translated by Paul Spaeth, vol. 6, 1995.
    • Commentary on Ecclesiastes, translated by Campion Murray and Robert J. Karris, vol. 7, 2005.
    • Commentary on the Gospel of Luke, translated by Robert J. Karris (3 vols), vol. 8, 2001-4.
    • Breviloquium, translated by Dominic V. Monti, OFM, vol. 9, 2005.
    • Writings on the Spiritual Life, [includes translations of The Threefold Way, On the Perfection of Life, On Governing the Soul, and The Soliloquium: A Dialogue on the Four Spiritual Exercises, the prologue to the Commentary on Book II of the Sentences of Peter Lombard and three short sermons: On the Way of Life, On Holy Saturday, and On the Monday after Palm Sunday, vol. 10, 2006.]
    • Commentary on the Gospel of John, translated by Robert J. Karris, vol. 11, 2007.
    • The Sunday sermons of St. Bonaventure, edited and translated by Timothy J. Johnson, vol. 12, 2008.
    • Disputed questions on evangelical perfection, edited and translated by Thomas Reist and Robert J. Karris, vol. 13, 2008.
    • Collations on the seven gifts of the Holy Spirit, introduced and translated by Zachary Hayes, vol. 14, 2008.
    • Defense of the mendicants, translated by Jose de Vinck and Robert J. Karris, vol. 15, 2010.
  • The Life of Christ translated and edited by William Henry Hutchings, 1881.
  • The Journey of the Mind into God (Itinerarium mentis in Deum), Indianapolis: Hackett, 1993. ISBN 978-0-8722-0200-9
  • On the Reduction of the Arts to Theology (De Reductione Artium ad Theologiam), translated by Zachary Hayes, (Saint Bonaventure, NY: Franciscan Institute, 1996. ISBN 978-1-57659-043-0
  • Bringing forth Christ: five feasts of the child Jesus, translated by Eric Doyle, Oxford: SLG Press, 1984.
  • The soul's journey into God; The tree of life; The life of St. Francis. Ewert Cousins, translator (The Classics of Western Spirituality ed.). Mahwah, New Jersey: Paulist Press. 1978. ISBN 0-8091-2121-2.
  • The Mystical Vine: a Treatise on the Passion of Our Lord, translated by a friar of SSF, London: Mowbray, 1955.
  • Life of St Francis of Assisi, TAN Books, 2010. ISBN 978-0-89555-151-1
St. Anselm
  • De Grammatico
  • De Veritate
  • De Libertate Arbitrii
  • De Casu Diaboli
  • De Fide Trinitatis, also known as De Incarnatione Verbi
  • Cur Deus Homo
  • De Conceptu Virginali et de Originali Peccato ("On the Virgin Conception and Original Sin")
  • De Processione Spiritus Sancti
  • De Sacrificio Azymi et Fermentati
  • De Sacramentis Ecclesiae
  • De Concordia
  • Monologion, also known as "Monologium," "Monologue," "A Monologue on the Reason for Faith" (Monoloquium de Ratione Fidei) and "An Example of Meditation on the Reason for Faith" (Exemplum Meditandi de Ratione Fidei)
  • Proslogion, also known as "Proslogium," "Discourse," "Faith Seeking Understanding" (Fides Quaerens Intellectum) and "An Address on God's Existence" (Alloquium de Dei Existentia)
  • Responsio or apology (Liber Apologeticus)
St. Isidore of Seville
  • Etymologiae
  • De fide catholica contra Iudaeos
  • Historia de regibus Gothorum, Vandalorum et Suevorum, a history of the Gothic, Vandal and Suebi kings. The longer edition, issued in 624, includes the Laus Spaniae and the Laus Gothorum.
  • Chronica Majora, a universal history
  • De differentiis verborum, a brief theological treatise on the doctrine of the Trinity, the nature of Christ, of Paradise, angels, and men
  • On the Nature of Things, a book of astronomy and natural history dedicated to the Visigothic king Sisebut
  • Questions on the Old Testament
  • a mystical treatise on the allegorical meanings of numbers
  • a number of brief letters
  • Sententiae libri tres Codex Sang. 228; 9th century
  • De viris illustribus
  • De ecclesiasticis officiis
  • De summo bono
St. Peter Chrysologus
  • Homilies
  • Letter to Eutyches
St. Leo the Great
  • ca. 100 letters
  • ca. 150 sermons
  • Tome
St. Peter Damian
  • De Divina Omnipotentia
  • Dominus vobiscum (The Book of "The Lord be with You").
  • Life of Romauld
  • The Eremitical Order
  • Officium Beatae Virginis
  • Liber Gomorrhianus
St. Bernard of Clairvaux
  • De gradibus humilitatis et superbiae (The steps of humility and pride)
  • Apologia ad Guillelmum Sancti Theoderici Abbatem (Apology to William of St. Thierry)
  • De conversione ad clericos sermo seu liber (On the conversion of clerics)
  • De gratia et libero arbitrio (On grace and free choice)
  • De diligendo Dei (On loving God).
  • Liber ad milites templi de laude novae militiae (In Praise of the new knighthood)
  • De praecepto et dispensatione libri (Book of precepts and dispensations)
  • De consideratione (On consideration)
  • Liber De vita et rebus gestis Sancti Malachiae Hiberniae Episcopi (The life and death of Saint Malachy, bishop of Ireland)
  • De moribus et officio episcoporum
  • Sermons, including Sermones super Cantica Canticorum (Sermons on the Song of Songs)
  • Letters
St. Hilary of Poitiers
  • Commentarius in Evangelium Matthaei
  • Tractatus super Psalmos
  • Tractatus mysteriorum
  • De Trinitate
  • De synodis
  • Liber II ad Constantium imperatorem
  • Liber in Constantium inperatorem
  • Contra Arianos vel Auxentium Mediolanensem liber
  • various documents relating to the Arian controversy in Fragmenta historica
  • Hymns
St. Alphonsus Liguori
  • Quanno Nascetti Ninno, a Christmas hymn translated into Italian by Pope Pius IX as Tu scendi dalle stelle ("From Starry Skies Thou Comest")
  • The Moral Theology
  • The Glories of Mary
  • Marian Devotion
  • Prayers to the Divine Mother
  • Spiritual Songs
  • The True Spouse of Jesus Chris
  • Great Means of Salvation and of Perfection
  • The Way of Salvation and of Perfection
  • The Way of the Cross
  • The History of Heresies
  • Preparation for Death
  • The Incarnation, Birth and Infancy of Jesus Christ
  • The Holy Eucharist
  • Victories of the Martyrs
St. Francis de Sales
  • Introduction to the Devout Life
  • Treatise on the Love of God
  • Letters of Spiritual Direction
St. Cyril of Alexandria
  • Becoming Temples of God
  • Second Epistle of Cyril to Nestorius
  • Third Epistle of Cyril to Nestorius (containing the twelve anathemas)
  • Formula of Reunion: In Brief (A summation of the reunion between Cyril and John of Antioch)
  • The "Formula of Reunion" between Cyril and John of Antioch
  • Five tomes against Nestorius (Adversus Nestorii blasphemias)
  • That Christ is One (Quod unus sit Christus)
  • Scholia on the incarnation of the Only-Begotten (Scholia de incarnatione Unigeniti)
  • Against Diodore of Tarsus and Theodore of Mopsuestia (fragments)
  • Against the synousiasts (fragments)
  • Commentary on the Gospel of Luke
  • Commentaries on the Old Testament
  • Thesaurus
  • Discourse Against Arians
  • Commentary on St. John's Gospel,
  • Dialogues on the Trinity
  • Against Julian the Apostate
  • Cyrilli Alexandrini liber Thesaurus adversus hereticos a Georgio Trapesuntio traductus
St. Cyril of Jerusalem
  • Catechetical Lectures
  • Mystagogic Catecheses
  • Letter to Constantius
St. John Damascene
  • three Apologetic Treatises against those Decrying the Holy Image
  • Fountain of Knowledge, also known as The Fountain of Wisdom, consisting of Philosophical Chapters, Concerninc Heresy, and An Exact Exposition of the Orthodox Faith
  • Against the Jacobites
  • Against the Nestorians
  • Dialogue against the Manichees
  • Elementary Introduction into Dogmas
  • Letter on the Thrice-Holy Hymn
  • On Right Thinking
  • On the Faith, Against the Nestorians
  • On the Two Wills in Christ (Against the Monothelites)
  • Sacred Parallels (dubious)
  • Octoechos (the Church's liturgical book of eight tones)
  • On Dragons and Ghosts
St. Bede the Venerable
  • Historia ecclesiastica gentis Anglorum (Ecclesiastical History of the English People)
  • Commentary on Acts
  • Retractation
  • Commentary on the Apocalypse
  • Commentary on the Catholic Epistles
  • Collectaneum on the Pauline Epistles
  • Commentary on Ezra and Nehemiah
  • Commentary on Genesis
  • Commentary on Luke
  • Commentary on Mark
  • Commentary on Proverbs
  • Quaestiones XXX
  • Commentary on Samuel
  • Commentary on the Song of Songs
  • De tabernaculo
  • De templo Salomonis
  • De Locis Sanctis
  • Life of St. Anastasius
  • Life of St. Felix
  • Life of St. Cuthbert (verse)
  • Life of St. Cuthbert (prose)
  • Martyrology
  • History of the Abbots of Wearmouth and Jarrow
  • Homilies
  • Letters
  • Hymns
  • Poems
  • De arte metrica
  • De schematibus et tropis
  • De orthographia
  • De natura rerum
  • De temporibus
  • De temporum ratione
  • De octo quaestionibus (disputed)
  • Paenitentiale Bedae (disputed)
St. Ephrem
  • Over 400 hymns
  • Homilies
  • Commentary on Genesis and Exodus
  • Biblical commentary on the Diatessaron
  • Refutations against Bardaisan, Mani, Marcion
  • The Life of Saint Mary the Harlot (disputed)
  • The Book of the Cave of Treasure
St. Peter Canisius
  • Summa doctrinae christianae
  • Catechismus minor (A Smaller Catechism)
  • Parvus catechismus catholicorum (A Little Catechism for Catholics)
St. John of the Cross
  • Spiritual Canticle
  • Dark Night of the Soul
  • Ascent of Mount Carmel
  • Living Flame of Love
  • Sayings of Light and Love ( Dichos de Luz y Amor)
St. Robert Bellarmine
  • Disputationes de controversiis christianae fidei (also called Controversiae)
  • Catechism (Dottrina cristiana)
  • The Mind's Ascent to God (De ascensione mentis in Deum per scalas rerum creatorum opusculum)
  • The Art of Dying Well
  • The Seven Words on the Cross
St. Albertus Magnus
  • Seven treatises on Logic
  • Physicorum
  • De Coelo et Mundo
  • De Generatione et Corruptione
  • Meteororum
  • Mineralium
  • De Natura locorum
  • De passionibus aeris
  • De vegetabilibus et plantis
  • De animalibus
  • De motibus animalium
  • De nutrimento et nutribili
  • De aetate
  • De morte et vita
  • De spiritu et respiratione
  • De Anima
  • De sensu et sensato
  • De Memoria, et reminiscentia
  • De somno et vigilia
  • De natura et origine animae
  • De intellectu et intelligibili
  • De unitate intellectus
  • Philosophia pauperum
  • Ethicorum
  • Politocorum
  • Metaphysicorum
  • De causis et processu universitatis
  • Commentary on the works of Denis the Aereopagite
  • Commentary on the Sentences of the Lombard
  • Summa Theologiae
  • Summa de creaturis
  • De sacramento Eucharistiae
  • Super evangelium missus est
  • Commentaries on the Psalms and Prophets
  • Commentaries on the Gospels
  • On the Apocalypse
  • Sermons
  • Quindecim problemata contra Averroistas
  • De apprehensione
  • Speculum astronomicum
  • De alchimia
  • Scriptum super arborem Aristotelis
  • Paradisus animae
  • Liber de Adhaerendo Deo
  • De Laudibus B. Virginis
  • Biblia Mariana
St. Anthony of Padua
  • Sermons for Feast Days (Sermones in Festivitates)
St. Lawrence of Brindisi
  • Mariale
  • Lutheranismi hypotyposis
  • Explanatio in Genesim
  • Quadragesimale primum
  • Quadragesimale secundum
  • Quadragesimale tertium
  • Quadragesimale quartum
  • Adventus
  • Dominicalia
  • Sanctorale
  • Sermones de tempore
St. Teresa of Avila
  • Autobiography
  • The Way of Perfection (El Camino de Perfección)
  • Meditations on Song of Songs
  • The Interior Castle (El Castillo Interior )
  • Relationships (Relaciones), an extension of the autobiography
  • Concepts of Love (Conceptos del Amor )
  • Exclamaciones
  • 342 letters and 87 fragments of others
St. Catherine of Siena
  • The Dialogue of Divine Providenc
  • More than 300 letters
  • 26 prayers
St. Therese of Lisieux
  • The Story of a Soul (L'histoire d'une âme)
St. John of Avila
  • Audi, filia
  • 82 sermons and spiritual conferences
  • Biblical commentaries
  • 257 letters
  • several treatises on reform and other minor treatises
St. Hildegard of Bingen
  • Scivias (Know the Ways)
  • Liber Vitae Meritorum (Book of Life's Merits or Book of the Rewards of Life);
  • Liber Divinorum Operum (Book of Divine Works, also known as De operatione Dei, "On God's Activity")
  • Sixty-nine musical compositions
  • Ordo Virtutum (Play of the Virtues), a morality play
  • Physica
  • Causae et Curae
  • 400 letters
St. Gregory of Narek
  • Book of Lamentations
  • Commentary on the Song of Songs
  • Hymns
  • Panegyrics on various holy figures
  • Homilies
  • Chants
  • Prayers
St. Irenaeus of Lyon
  • Adversus haereses
  • The Demonstration of the Apostolic Preaching

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