1888
Traubel, Horace. With Walt Whitman in Camden. Vol. 2, Mitchell Kennerley, 1915. Originally stated in a conversation with Walt Whitman, 3 Aug. 1888.
Henley, William Ernest. Book of Verses. London: David Nutt, 1888.
Henley, William Ernest. "Invictus." A Selection of Poems. White Press, 2015, st. 1.
Quoted in Chicago Labor Enquirer
Swinton, John. Quoted in Chicago Labor Enquirer. 12 May 1888.
Twain, Mark. Mark Twain's Notebook, edited by Albert Bigelow Paine. The Mark Twain Company, 1932, ch. 20. Originally from Notebook, c. 1888.
Henley, William Ernest. Book of Verses. London: David Nutt, 1888.
Henley, William Ernest. "Invictus." A Selection of Poems. White Press, 2015, st. 4.
Lodge, Henry Cabot. "The Day We Celebrate." New England Society of Brooklyn meeting. 21 Dec. 1888, Brooklyn, New York City, NY, USA.
Nietzsche, Friedrich. Der Wille zur Macht [The Will to Power]. Leipzig: C.G. Naumann, 1906.
Nietzsche, Frederick. The Will to Power, translated by Walter Kaufmann and R. J. Hollingdale, edited by Walter Kaufmann. Vintage, 1968.
Wilde, Oscar. "The Devoted Friend." The Happy Prince and Other Tales. London: Duckworth and Co., 1888.
Wilde, Oscar. "The Devoted Friend." Oscar Wilde: Complete Short Fiction, edited by Ian Small. Penguin Classics, 2003.
Van Gogh, Vincent. Letter to Theo van Gogh. 25 Oct. 1888.
Van Gogh, Vincent. Dear Theo: The Autobiography of Vincent Van Gogh, edited by Irving Stone and Jean Stone. Plume, 1995.
Bryce, James. The American Commonwealth. Vol. 1, London: Macmillan and Co., 1888, ch. 51.
Kipling, Rudyard. "The Phantom 'Rickshaw." The Phantom 'Rickshaw & other Eerie Tales. Prayagraj: A. H. Wheeler & Co., 1888.
Kipling, Rudyard. "The Phantom 'Rickshaw." The Man Who Would Be King and Other Stories. Dover Publications, 2013.
Wilde, Oscar. "The Nightingale and the Rose." The Happy Prince and Other Tales. London: Duckworth and Co., 1888.
Wilde, Oscar. "The Nightingale and the Rose." Oscar Wilde: Complete Short Fiction, edited by Ian Small. Penguin Classics, 2003.
Gauguin, Paul. Letter to Emile Schuffenecker. 14 Aug. 1888.
Bryce, James. The American Commonwealth. Vol. 1, London: Macmillan and Co., 1888, ch. 8.