Classical antiquity
Euripides. Herakles' Children [Children of Heracles]. c. 430 BC, Athens, Greece.
Euripides. "The Children of Hercules." Euripides I: Alcestis; Medea; The Children of Heracles; Hippolytus, edited and translated by Mark Griffith, Glenn W. Most, David Grene, and Richmond Lattimore. University of Chicago Press, 2013.
Saint Cyprian. Letter to Jubaianus, Concerning the Baptism of Heretics. c. 250.
Saint Cyprian. "Letter 73: Rebaptism: the Novatian Dimension." On the Church: Select Letters, translated by Allen Brent. St. Vladimir's Seminary Press, 2006.
Matthew 17:20
The Holy Bible, New International Version. International Bible Society, 1978. (Matthew 17:20).
Matthew 26:39
The Holy Bible: The King James Version. 1611. (Matthew 26:39).
Justinian. "Institutiones Justinani [Institutes of Justinian]." Corpus Iurus Civilis [Body of Civil Law]. c. 533, b. 1, ch. 1, para. 1.
Justinian. Justinian's Institutes, translated by Peter Birks and Grant McLeod. Cornell University Press, 1987, bk. 1, ch. 1, para. 1.
Juvenal. Satirae [Satires]. c. 127, satire 8.
Juvenal. The Satires, translated by Niall Rudd. Oxford University Press, 2008, satire 8.
Juvenal. Satirae [Satires]. c. 127, satire 6.
Juvenal. The Satires, translated by Niall Rudd. Oxford University Press, 2008, satire 6.
Sophocles. Unnamed drama. 5th century BC, fragment 694.
Seneca the Younger. Epistulae Morales ad Lucilium [Moral Letters to Lucilius]. c. 65 AD.
Seneca, Lucius Annaeus. Letters on Ethics, translated by Margaret Graver and A. A. Long. University of Chicago Press, 2017.
Martial. Epigrammata [Epigrams]. c. 102 AD, bk. 7, no. 73.
Martial. Epigrams, translated by Gideon Nisbet. Oxford University Press, 2015, bk. 7, no. 73.
Quoted in Theaetetus, by Plato
Socrates. Quoted in Θεαίτητος [Theaetetus], written by Plato. c. 369 BC.
Socrates. Quoted in Theaetetus, written by Plato, translated by John McDowell. Oxford University Press, 2014.
Aristophanes. Ὄρνιθες [Birds]. c. 414, Dionysia, Athens, Greece.
Aristophanes. "Birds." Aristophanes: The Complete Plays, translated by Paul Roche. New American Library/Berkley, 2005.
Quoted in Plutarch's Lives, by Plutarch
Anacharsis. Quoted in "Solon." Lives of the Noble Greeks and Romans. c. 120.
Anacharsis. Quoted in "Solon." Greek Lives, written by Plutarch, translated by Robin Waterfield. Oxford University Press, 2009.
The Holy Bible: The King James Version. 1611. (Acts 4:12).