1903
Shaw, George Bernard. "Man and Superman: Maxims for Revolutionists." Man and Superman, John Bull's Other Island, and Major Barbara. Oxford University Press, 2021. Originally published by Archibald and Constable Co., Ltd., 1903.
Roosevelt, Theodore, Jr. Speech at the Lincoln Monument. 4 July 1903, Lincoln Monument, Springfield, IL, USA.
Shaw, George Bernard. "Man and Superman: Maxims for Revolutionists." Man and Superman, John Bull's Other Island, and Major Barbara. Oxford University Press, 2021. Originally published by Archibald and Constable Co., Ltd., 1903.
Yeats, William Butler. "Adam's Curse." In the Seven Woods. Elizabeth Yeats's Dun Emer Press, 1903.
Yeats, William Butler. "Adam's Curse." W. B. Yeats: The Major Works, edited by Edward Larrissy. Oxford University Press, 2008.
Beckmann, Max. "August 23, 1903." Max Beckmann: Self-Portrait in Words: Collected Writings and Statements, 1903-1950, edited by Barbara Copeland Buenger, University of Chicago Press, 1997, p. 27.
Shaw, George Bernard. "Man and Superman: Maxims for Revolutionists." Man and Superman, John Bull's Other Island, and Major Barbara. Oxford University Press, 2021, preface. Originally published by Archibald and Constable & Co., Ltd, 1903.
Arnold, Matthew. Quoted in Collections and Recollections, written by G. W. E. Russell. New York: Harper & Brothers, 1898, ch. 14. Originally stated to Russell by Arnold c. 1890.
James, Henry. "The Ambassadors." North American Review, 1903.
James, Henry. The Ambassadors, edited by Christopher Butler. Oxford University Press, 2009, bk. 5.
Wright, Orville. Telegram to Reverend Milton Wright. 17 Dec. 1903.
Wright, Orville. Quoted in To Fly: The Story of the Wright Brothers, written by Wendie C. Old. Houghton Mifflin Harcourt, 2002.
Allen, James. As a Man Thinketh. 1903.
Allen, James. As a Man Thinketh: The Complete Original Edition. St. Martin's Essential, 2019.
Keller, Helen. Optimism. T. Y. Crowell and Company, 1903, pt. 2.
Keller, Helen. "Optimism." The World I Live In and Optimism: A Collection of Essays. Dover Publications, 2010, pt. 2.
Roosevelt, Theodore, Jr. Speech at the Grand Canyon. 6 May 1903, The Grand Canyon, AZ, USA.
Roosevelt, Theodore, Jr. "The Natural Wonder of the Grand Canyon." Great Speeches of the 20th Century, edited by Bob Blaisdell. Dover Publications, 2011.