Theologian
Saint Thomas Aquinus. Summa Theologica. c. 1274, pt. 1.
Saint Thomas Aquinus. The Summa Theologica of St. Thomas Aquinas, translated by Fathers of the English Dominican Provinc. Christian Classics, 1981, pt. 1.
Saint Anselm. Proslogium [Proslogion]. c. 1078, ch. 3.
Saint Anselm. "Proslogion." Anselm of Canterbury: The Major Works, edited by Brian Davies and G. R. Evans. Oxford University Press, 2008, ch. 3.
Tertullian. Ad Scapulam [To Scapula]. c. 217, ch. 2.
Augustine of Hippo. Confessiones [Confessions]. c. 398, bk. 10, ch. 27.
Augustine of Hippo. Confessions, translated by R. S. Pine-Coffin. Penguin Classics, 1961, bk. 10, ch. 27.
Tertullian. Adversus Valentinianos [Against the Valentinians]. c. 207 CE, sect. 3.
Bernard of Clairvaux. "Letter CVI: To Magister Henry Murdach." Epistles. n.d., no. CCCLXXI.
Bernard of Clairvaux. "Letter CVI: To Magister Henry Murdach." The Letters of Bernard Clairvaux, translated by Bruno Scott James. Liturgical Press, 2003.
Clairvaux, St. Bernard. Letter to Magister Henry Murdach. c. 1150.
Clairvaux, St. Bernard. "Letter CVI." Life and Works of Saint Bernard. Aeterna Press, 2015.
Luther, Martin. Tischreden [Table Talk]. Eisleben, 1566.
Luther, Martin. The Table Talk of Martin Luther, edited by Thomas S. Kepler. Dover Press, 2005.
Quoted in Letter to Casulanus, by Saint Augustine
Saint Ambrose's advice to Saint Augustine.
Saint Ambrose. Quoted in "Letter To Casulanus, From Saint Augustine." c. 396, ch. 32.
Busenbaum, Hermann. Medulla Theologiae Moralis. 1650.
Tertullian. De Testimonio Animae [The Testimony of the Soul]. c. 198, ch. 6.
Campanella, Tommaso. Apologia pro Galileo [In Defense of Galileo]. Frankfurt am Main: Gottfried Tampach, 1622, ch. 4.
Campanella, Thomas. Defense of Galileo, translated by Richard J. Blackwell. University of Notre Dame Press, 1994, ch. 4.
Edwards, Jonathan. "Procrastination or The Sin and Folly of Depending on Future Time." c. 1834. Sermon.
The Justice of God in the Damnation of Sinners
Edwards, Jonathan. The Justice of God in the Damnation of Sinners. 1734.
Niebuhr, Reinhold. The Children of Light and the Children of Darkness. Charles Scribner's Sons, 1944.
Channing, William Ellery. "Self Culture." Franklin Lecture. Sept. 1838, Boston, MA, USA.
Channing, William Ellery. "Self Culture." Franklin Lecture. Sept. 1838, Boston, MA, USA.