1900s
Roosevelt, Theodore, Jr. "The American Boy." St. Nicholas Magazine, May 1900.
Adams, Henry. The Education of Henry Adams. 1907, ch. 25.
Adams, Henry. "The Education of Henry Adams." Henry Adams: Democracy, Esther, Mont Saint Michel and Chartres, The Education of Henry Adams, edited by Ernest Samuels and Jayne Samuels. Library of America, 1983, ch. 25.
Barrie, James M. Peter Pan; or, the Boy Who Wouldn't Grow Up. Performed by Gerald du Maurier, Nina Boucicault, Joan Burnett, Christine Silver, A.W. Baskcomb, and Alice DuBarry. 27 Dec. 1904, Duke of York's Theatre, Westminster, London, England, UK, act 3.
Barrie, James M. Peter Pan. Reader's Library Classics, 2022, ch. 8.
Strode, Muriel. "Wind-Wafted Wild Flowers." The Open Court, 1903.
Zangwill, Israel. The Melting Pot. 5 Oct. 1908, Columbia Theatre, Washington, DC, USA, act 1.
Shackleton, Ernest. Diary entry. 11 Dec. 1908.
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.
Poincare, Henri. Valeur de la Science [The Value of Science]. Flammarion, 1904, ch. 11.
Poincare, Henri. The Value of Science: Essential Writings of Henri Poincare, edited by Stephen Jay Gould. Random House Publishing Group, 2001.
The Metropolis and Mental Life
Simmel, Georg. "Die Großstädte und das Geistesleben [The Metropolis and Mental Life]." The First German Municipal Exposition. 1903, Dresden, Germany.
Simmel, Georg. "The Metropolis and Mental Life." Classic Essays on the Culture of Cities. Appleton-Century-Crofts, 1969.
Shaw, George Bernard. "Man and Superman." Man and Superman, John Bull's Other Island, and Major Barbara. Oxford University Press, 2021, "epistle dedicatory." Originally published by Archibald and Constable & Co., Ltd, 1903.
Masefield, John. "Sea-Fever." Salt-Water Ballads. London: Grant Richards, 1902, I. 1.
Masefield, John. "Sea-Fever." Sea Fever: Selected Poems of John Masefield, edited by Philip W. Errington. Carcanet Press, 2005, I. 1.
Sumner, William Graham. Folkways: A Study of Mores, Manners, Customs and Morals. Ginn & Company, 1906, ch. 11.
Jerome, Jerome Klapka. The Passing of the Third Floor Back. Grosset & Dunlap, 1908.
Einstein, Albert. "To Jost Winteler." The Collected Papers of Albert Einstein, vol. 1: The Early Years, 1879-1902, English Translation Supplement, translated by Anna Beck. Princeton University Press, 1987, no. 115. Originally from Letter to Jost Winteler, 8 July 1901.
Keller, Helen. Optimism. T. Y. Crowell and Company, 1903, pt. 1.
Keller, Helen. "Optimism." The World I Live In and Optimism: A Collection of Essays. Dover Publications, 2010, pt. 1.
Roosevelt, Theodore, Jr. "Third Annual Message to Congress." Joint session of the Senate and House of Representatives. 7 Dec. 1903, US Capitol Building, Washington, DC, USA.
James, William. "The Value of Saintliness." Gifford Lecture. c. 1902, University of Edinburgh, Edinburgh, Scotland. Lecture.
James, William. "The Value of Saintliness." The Varieties of Religious Experience, edited by Martin E. Marty. Penguin Classics, 1982.
Poincare, Henri. La science et l'hypothese [Science and Hypothesis]. Flammarion, 1902, introduction.
Poincare, Henri. Science and Hypothesis: The Complete Text, translated by Melanie Frappier, Andrea Smith and David J. Stump, edited by Melanie Frappier and David J. Stump. Bloomsbury Academic, 2022, preface.
James, William. "The Present Dilemma in Philosophy." Nov. 1906, Lowell Institute, Boston, MA, USA. Lecture.
James, William. "The Present Dilemma in Philosophy." Pragmatism. Dover Publications, 2018.