5th century BC
Laozi [Lao Tzu]. 道德經 [Tao Te Ching]. c. 400 BC, ch. 2.
Laozi [Lao Tzu]. "The Natural Way of Lao Tzu." A Source Book in Chinese Philosophy, translated by Wing-Tsit Chan. Princeton University Press, 1969, ch. 2.
Laozi [Lao Tzu]. 道德經 [Tao Te Ching]. c. 400 BC, ch. 1.
Laozi [Lao Tzu]. "The Natural Way of Lao Tzu." A Source Book in Chinese Philosophy, translated by Wing-Tsit Chan. Princeton University Press, 1969, ch. 1.
Sophocles. Αἴας [Ajax]. c. 441 BCE, Athens, Greece.
Sophocles. "Ajax." Electra and Other Plays, translated by David Raeburn. Penguin Classics, 2008.
Sophocles. Αἴας [Ajax]. c. 441 BCE, Athens, Greece.
Sophocles. "Ajax." Electra and Other Plays, translated by David Raeburn. Penguin Classics, 2008.
Sophocles. Phaedra. c. 5th century BC, fragment 612.
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.
Hippocrates. Aphorisms. c. 370 BC, sect. 1, pt. 1.
Hippocrates. The Aphorisms. Classics of Medicine Library, 1982, sect. 1, pt. 1.
Xenophanes. Fragments. 5th century BC, F31 - DK22 B116.
Xenophanes. "Xenophanes of Colophon." The First Philosophers: The Presocratics and Sophists. Oxford World Classics, 2009, F31 - DK22 B116.
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.
Thucydides. The History of the Peloponnesian War. c. 431 BC, bk. 1.
Thucydides. The Peloponnesian War, translated by Martin Hammond. Oxford University Press, 2009, bk. 1.
Heraclitus. Fragments. 5th century BC, F2 - DK B78.
Heraclitus. "Heraclitus of Ephesus." The First Philosophers: The Presocratics and Sophists, translated by Robin Waterfield. Oxford University Press, 2009, F2 - DK B78.
Herodotus. Histories. c. 430 BC, bk. 7.
Herodotus. The Histories, translated by Robin Waterfield. Oxford University Press, 2008, bk. 7.
Thucydides. The History of the Peloponnesian War. c. 431 BC, bk. 1.
Thucydides. The Peloponnesian War, translated by Martin Hammond. Oxford University Press, 2009, bk. 1.
Herodotus. Ἱστορίαι [Histories]. c. 430 BC, bk. 2, ch. 173.
Herodotus. The Histories, translated by Robin Waterfield. Oxford University Press, 2008, bk. 2, ch. 173.