The "Lost Generation" was the generation that came of age during World War I. The term was popularized by Ernest Hemingway, who used it as one of two contrasting epigraphs for his novel, The Sun Also Rises. In that volume Hemingway credits the phrase to Gertrude Stein, who was then his mentor and patron. This generation included artists and a group of writers who came of age during the war such as F. Scott Fitzgerald, T. S. Eliot, James Joyce, Sherwood Anderson, John Dos Passos, John Steinbeck, William Faulkner, Waldo Peirce, Isadora Duncan, Abraham Walkowitz, Alan Seeger, Franz Kafka, Henry Miller, Aldous Huxley, Louis-Ferdinand Céline, Erich Maria Remarque and the composers Sergei Prokofiev, Paul Hindemith, George Gershwin, and Aaron Copland.