Greece
Anonymous. Quoted in Gorgias, written by Plato. Oxford University Press, 2008. Originally a drinking song by an anonymous source.
Sophocles. Ἀντιγόνη [Antigone]. c. 441 BC, Festival of Dionysus, Athens, Greece.
Sophocles. "Antigone." The Oedipus Cycle: Oedipus Rex; Oedipus at Colonus; Antigone, translated by Dudley Fitts and Robert Fitzgerald. Mariner Books, 2002.
Aeschylus. Agamemnon. 458 BCE, The Dionysia, Athens, Greece.
Aeschylus. "Agamemnon." The Oresteia: Agamemnon; The Libation Bearers; The Eumenides, edited and translated by Robert Fagles. Penguin Classics, 1984.
Sappho. Sappho to the Moon. c. 570 BCE.
Sappho. Quoted in The Greek Anthology and Other Ancient Greek Epigrams, edited by Peter Jay. Oxford University Press, 1973.
Sophocles. Οἰδίπους ἐπὶ Κολωνῷ [Oedipus at Colonus]. 401 BC, Festival of Dionysus, Athens, Greece.
Sophocles. "Oedipus at Colonus." The Three Theban Plays: Antigone, Oedipus the King, Odeipus at Colonus, translated by Robert Fagles. Penguin Classics, 2000.
Aeschylus. The Libation Bearers. c. 458 BC, Athens, Greece.
Aeschylus. "The Libation Bearers." The Oresteia: Agamemnon; The Libation Bearers; The Eumenides, edited and translated by Robert Fagles. Penguin Classics, 1984.
Plato. Ἀπολογία Σωκράτους [Apology of Socrates]. Speech of legal self-defence which Socrates spoke at his trial for impiety and corruption. 399 BC, Athens, Greece.
Plato. "Apology." Plato: Euthyphro; Apology; Crito; Phaedo, translated by Christopher Emlyn-Jones and William Preddy. Harvard University Press, 2017.
Epicurus. Quoted in Lives and Opinions of Eminent Philosophers, written by Diogenes Laertius. c. 240 AD, bk. 10, ch. 1, sect. 128.
Epicurus. Quoted in The Lives of Eminent Philosophers, written by Diogenes Laërtius, translated by Pamela Mensch, edited by James Miller. Oxford University Press, 2018, bk. 10, ch. 1, sect. 128.
Sophocles. Ἀντιγόνη [Antigone]. c. 441 BC, Festival of Dionysus, Athens, Greece.
Sophocles. "Antigone." The Oedipus Cycle: Oedipus Rex; Oedipus at Colonus; Antigone, translated by Dudley Fitts and Robert Fitzgerald. Mariner Books, 2002.
Euripides. Ὀρέστης [Orestes]. 408 BC, City Dionysia festival, Athens, Greece.
Euripides. "Orestes." Euripides IV: Helen, The Phoenician Women, Orestes, edited and translated by Richard Lattimore, et. al. University of Chicago Press, 2013.
Thucydides. The History of the Peloponnesian War. c. 431 BC, bk. 2.
Thucydides. The Peloponnesian War, translated by Martin Hammond. Oxford University Press, 2009, bk. 2.
Euripides. Ἄλκηστις [Alcestis]. 438 BC, City Dionysia festival, Athens, Greece.
Euripides. "Alcestis." Euripides I: Alcestis, Medea, The Children of Hercules, Hippolytus, edited and translated by Richard Lattimore, et. al. University of Chicago Press, 2013.
Aristotle. Περὶ οὐρανοῦ [On the Heavens]. c. 350 BC.
Aristotle. De Caelo, translated by C. D. C. Reeve. Hackett Publishing, 2020.
Sophocles. Oedipus Rex. c. 429 BC, Theatre of Dionysus, Athens, Greece.
Sophocles. "Oedipus Rex." The Oedipus Cycle: Oedipus Rex; Oedipus at Colonus; Antigone, translated by Dudley Fitts and Robert Fitzgerald. Mariner Books, 2002.
Euripides. Ἄλκηστις [Alcestis]. 438 BC, City Dionysia festival, Athens, Greece.
Euripides. "Alcestis." Euripides I: Alcestis, Medea, The Children of Hercules, Hippolytus, edited and translated by Richard Lattimore, et. al. University of Chicago Press, 2013.
Aristophanes. Λυσιστράτη [Lysistrata]. c. 411 BC, Athens, Greece.
Aristophanes. "Lysistrata." Lysistrata and Other Plays. Penguin Classics, 2008.
Quoted in The Lives and Opinions of Eminent Philosophers, by Diogenes Laërtius
Theophrastus. Quoted in The Lives and Opinions of Eminent Philosophers, written by Diogenes Laërtius. c. 240 AD, bk. 5, ch. 2.
Theophrastus. Quoted in The Lives of Eminent Philosophers, written by Diogenes Laërtius, translated by Pamela Mensch, edited by James Miller. Oxford University Press, 2018, bk. 5, ch. 2.
Epicurus. Quoted in Lives and Opinions of Eminent Philosophers, written by Diogenes Laertius. c. 240 AD, bk. 10, ch. 1, sect. 148.
Epicurus. Quoted in The Lives of Eminent Philosophers, written by Diogenes Laërtius, translated by Pamela Mensch, edited by James Miller. Oxford University Press, 2018, bk. 10, ch. 1, sect. 148.
Euripides. Phoenix. 5th century BC, fragment 809.
Sophocles. Acrisius. 5th century BC, fragment 64.