Philosophical literature
Mencius. Mengzi. c. 300 BC, bk. 4.
Mencius. Mencius, translated by D. C. Lau. Penguin Classics, 2005, bk. 4.
Boethius. De Consolatione Philosophiae [On the Consolation of Philosophy]. 524, bk. 2, poem 4.
Boethius. The Consolation of Philosophy, translated by Victor Watts. Penguin Classics, 1999, bk. 2, poem 4.
Spinoza, Baruch. Ethica, Ordine Geometrico Desmonstrata [Ethics, Demonstrated in Geometrical Order]. 1677, pt. 4, preface.
Spinoza, Benedict. Ethics, translated by Michael Silverthorne and Matthew J. Kinser. Cambridge University Press, 2018, pt. 4, preface.
Blake, William. "The Argument." The Marriage of Heaven and Hell. c. 1790.
Blake, William. "The Marriage of Heaven and Hell." The Complete Poetry and Prose of William Blake, edited by David V. Erdman. University of California Press, 2008.
Epicurus. Quoted in Lives and Opinions of Eminent Philosophers, written by Diogenes Laertius. c. 240 AD, bk. 10, ch. 1, sect. 125.
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. 125.
Mill, John Stuart. On Liberty. London: J.W. Parker and Son, 1859, ch. 2.
Mill, John Stuart. "On Liberty." On Liberty, Utilitarianism and Other Essays, edited by Mark Philp and Frederick Rosen. Oxford University Press, 2015, ch. 2.
Aurelius, Marcus. Meditations. c. 180, bk. 4.
Aurelius, Marcus. Meditations, edited and translated by Martin Hammond. Penguin Classics, 2015, bk. 4.
Hobbes, Thomas. Leviathan or The Matter, Forme and Power of a Commonwealth Ecclesiasticall and Civil. London: Andrew Crooke, 1651, pt. 1, ch. 12.
Hobbes, Thomas. Leviathan, edited by Christopher Brooke. Penguin Classics, 2017, pt. 1, ch. 12.
Hume, David. "Of the Idea of Necessary Connection (In Two Parts)." An Enquiry Concerning Human Understanding. London: A. Millar, 1748, sect. 7, pt. 2, para. 41.
Hume, David. "Of the Idea of Necessary Connexion." An Enquiry Concerning Human Understanding, edited by Tom L. Beauchamp. Oxford University Press, 2000, sect. 7, pt. 2, para. 41.
Epictetus. Ἐγχειρίδιον Ἐπικτήτου, Enkheirídion Epiktḗtou [Enchiridion of Epictetus]. c. 125 CE, ch. 1.
Epictetus. Enchiridion, translated by George Long. Dover Publications, 2004, ch. 1.
Xenophanes. Fragments. 5th century BC, F16 - DK22 B110.
Xenophanes. "Xenophanes of Colophon." The First Philosophers: The Presocratics and Sophists. Oxford World Classics, 2009, F16 - DK22 B110.
Kierkegaard, Soren [published as Anti-Climacus]. Sygdommen til Døden [The Sickness unto Death]. Copenhagen: C.A. Reitzels Forlag, 1849.
Kierkegaard, Soren. The Sickness unto Death, translated by Alastair Hannay. Penguin Classics, 1989.
Paine, Thomas. Rights of Man. London: J. S. Jordan, 1791.
Paine, Thomas. "Rights of Man." Rights of Man, Common Sense, and Other Political Writings, edited by Mark Philp. Oxford University Press, 2009.
Plutarch. "Περὶ δεισιδαιμονίας [On Superstition]." Moralia [Ἠθικά]. c. 100 AD.
Smith, Adam. The Theory of Moral Sentiments. London: Andrew Millar/Edinburgh: Alexander Kincaid and J. Bell, 1759, pt. 2, sect. 3, ch. 1.
Smith, Adam. The Theory of Moral Sentiments, edited by Ryan Patrick Hanley. Penguin, 2010, pt. 2, sect. 3, ch. 1.
Carus, Titus Lucretius. De Rerum Natura [On the Nature of Things]. c. 55 BC, bk. 2, l. 1.
Carus, Titus Lucretius. The Nature of Things, translated by Alicia Stallings. Penguin Classics, 2007, bk. 2, l. 1.
Menander. "Dis Exapaton [The Double Deceiver]." Plays and Fragments. c. 290 BC.
Menander. "Twice a Swindler (Dis Exapaton)." Plays and Fragments, translated by Maurice Balme. Oxford University Press, 2008.
Paine, Thomas. Letter Addressed to the Addressers, on the Late Proclamation. London: H. D. Symonds and Thomas Clio Rickman, 1792.
Paine, Thomas. "Letter Addressed to the Addressers on the Late Proclamation." Rights of Man, Common Sense, and Other Political Writings, edited by Mark Philp. Oxford University Press, 2009.