Europe
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.
Voltaire. Essai sur l'Histoire Generale et sur les Moeurs et l'Espri des Nations [An Essay on Universal History, the Manners, and Spirit of Nations]. Geneva: Gabriel Cramer, 1756, ch. 70.
Donne, John. "The Progress of the Soul." Poems. London: John Marriot, 1633, st. 39.
Donne, John. "The Progress of the Soul. Metempsychosis." John Donne: The Major Works, edited by John Carey. Oxford University Press, 2009, st. 39.
Carlyle, Thomas. "On History." Fraser's Magazine, 1830.
Carlyle, Thomas. "On History." The Works of Thomas Carlyle, edited by Henry Duff Traill. Vol. 27, Cambridge University Press, 2010.
Annals of the Fine Arts for 1819
Keats, John, [published anonymously]. "Ode on a Grecian Urn." Annals of the Fine Arts for 1819. London: Sherwood, Neely, and Jones, 1820.
Keats, John. "Ode on a Grecian Urn." John Keats: The Major Works, edited by Elizabeth Cook. Oxford University Press, 2009.
Shakespeare, William and John Fletcher. Henry VIII. King's Men, 1613, Globe Theatre, London, England, UK, act 4, sc. 2.
Shakespeare, William. "Henry the Eighth." The Norton Shakespeare, edited by Stephen Greenblattet al., 3rd ed., W. W. Norton & Company, 2015, act 4, sc. 2.
Quintus Ennius. Quoted in De Natura Deorum [On the Nature of the Gods], written by Cicero. c. 45 BC, bk. 1.
Quintus Ennius. Quoted in The Nature of the Gods, written by Cicero, translated by P. G. Walsh. Oxford University Press, 2008, bk. 1.
Queen Elizabeth I. Speech to her troops in the Spanish Armada. 9 Aug. 1588, Tilbury, England, UK.
Queen Elizabeth I. Elizabeth I: Collected Works. University of Chicago Press, 2000.
Pliny the Elder. Historia Naturalis [Natural History]. 77 AD, bk. 1.
Pliny the Elder. Natural History: A Selection, translated by John F. Healy. Penguin Classics, 1991, bk. 1.
Wilde, Oscar. Lady Windermere's Fan, A Play About a Good Woman. 1892, St James's Theatre, London, England, UK, act 2.
Wilde, Oscar. "Lady Windermere's Fan." Oscar Wilde: The Major Works, edited by Isobel Murray. Oxford University Press, 2008, act 2.
Carnegie, Andrew. "The Best Fields for Philanthropy." North American Review, 25 Nov. 1889.
Carnegie, Andrew. "The Best Fields for Philanthropy." The Gospel of Wealth Essays and Other Writings. Penguin Classics, 2006.
Einstein, Albert. Quoted in The Universe and Dr. Eistein. Written by Lincoln Barnett. Sloane, 1950. Originally printed in Harpers, 1948.
Shakespeare, William. The Merchant of Venice. c. 1598, The Theatre, London, England, UK, act 4, sc. 1.
Shakespeare, William. "The Merchant of Venice." The Norton Shakespeare, edited by Stephen Greenblatt, et al., 3rd ed., W. W. Norton & Company, 2015, act 4, sc. 1.
Froissart, Jean. Chroniques. c. 1369, bk. 1.
Froissart, Jean. Chronicles, translated and edited by Geoffrey Brereton. Penguin Classics, 1978, bk. 1.
Kant, Immanuel. Critik der praktischen Vernuft [Critique of Practical Reason]. Riga: Johann Friedrich Hartknoch, 1788, conclusion.
Kant, Immanuel. Critique of Practical Reason, translated by Mary Gregor. Cambridge University Press, 2015, conclusion.