Philosophical literature
Russell, Bertrand. "On the Value of Skepticism." Sceptical Essays. George Allen and Unwin Ltd./W. W. Norton & Company, 1928.
Quoted in The Enchiridion, by Arrian
Epictetus. Ἐγχειρίδιον Ἐπικτήτου, Enkheirídion Epiktḗtou [Enchiridion of Epictetus]. c. 125 CE, ch. 15.
Epictetus. Enchiridion, translated by George Long. Dover Publications, 2004, ch. 15.
Hegel, G. W. F. Vorlesungen über die Philosophie der Weltgeschichte [Lectures on the Philosophy of World History]. c. 1830, University of Berlin, Berlin, Germany.
Hegel, G. W. F. Lectures on the Philosophy of World History, translated by H. B. Nisbet. Cambridge University Press, 1981.
Ortega y Gasset, Jose. La Rebelion de las Masas [The Revolt of the Masses.] El Sol, 1929, serial.
Ortega y Gasset, Jose. The Revolt of the Masses. W. W. Norton & Company, 1994, ch. 8.
Kierkegaard, Soren [published as Victor Eremita]. Enten-Eller [Either/Or]. Vol. 1, Copenhagen: University bookshop, 1843.
Kierkegaard, Soren. Either/Or: A Fragment of Life, translated by Alistair Hanny. Penguin Classics, 1992, pt. 1.
Kierkegaard, Soren [published as Johannes de silentio]. Frygt og Bæven [Fear and Trembling]. Copenhagen: C. A. Reitzel, 1843.
Kierkegaard, Soren. Fear and Trembling, translated by Alastair Hannay. Penguin Classics, 1986.
Bentham, Jeremy. A Fragment on Government. London: T. Payne, P. Elmsly, and E. Brooke, 1776, preface.
Bentham, Jeremy. "A Fragment on Government." A Comment on the Commentaries and A Fragment on Government, edited by J.H. Burns and H.L.A Hart. Clarendon Press, 2009, preface.
Russell, Bertrand. The Conquest of Happiness. Liveright, 1930, ch. 12.
Camus, Albert. La Chute [The Fall]. Editions Gallimard, 1956.
Camus, Albert. Le Mythe de Sisyphe [The Myth of Sisyphus]. Éditions Gallimard, 1942.
Santayana, George. Introduction. Ethics, by Spinoza, translated by A. Boyle. Everyman's Library, 1910, introduction.
Suzuki, Shunryu. Zen Mind, Beginner's Mind. Weatherhill, 1970. Originally a talk given at his Zen center in c. 1969, Los Altos, CA, USA.
Sartre, Jean Paul. Le etre et le neant: Essai d'ontologie phenomenologique [Being and Nothingness: An Essay on Phenomenological Ontology]. Librairie Gallimard, 1943, pt. 4, ch. 1.
Sartre, Jean Paul. Being and Nothingness, translated by Sarah Richmond. Washington Square Press, 2021, pt. 4, ch. 1.
Berlin, Isaiah. "Two Concepts of Liberty." 31 Oct. 1958, University of Oxford, Oxford, England, UK.
Berlin, Isaiah. Isaiah Berlin and the Politics of Freedom: ‘Two Concepts of Liberty’ 50 Years Later, edited by Bruce Baum and Robert Nichols. Routledge, 2015.
Bacon, Francis. The Advancement of Learning. London: Oxford: Rob Youn and Ed Forrest, 1605, bk. 2, ch. 7, sect. 5.
Bacon, Francis. "The Advancement of Learning." Francis Bacon: The Major Works, edited by Brian Vickers. Oxford University Press, 2008, bk. 2, ch. 2, sect. 5.
Epictetus. Ἐπικτήτου διατριβαί, Epiktētou diatribai [The Discourses of Epictetus]. c. 108, bk. 1, ch. 16.
Epictetus. "The Discourses." Discourses and Other Writings, edited and translated by Robert Dobbin. Penguin Classics, 2008, bk. 1, ch. 16.
Popper, Karl. The Open Society and Its Enemies. Vol. 1, Routledge, 1995, notes to the chapters, ch. 7, note 4.
Santayana, George. The Life of Reason: Reason in Religion, edited by Marianne S. Wokeck and Martin A. Coleman. Vol. 7, The MIT Press, 2014, bk. 3, ch. 1. Originally published by Charles Scribner's Sons, 1905.