Oscar Wilde (2013). “The Picture of Dorian Gray: The Story of a Fashionable Young Man Who Sells His Soul for Eternal Youth and Beauty (Beloved Books Edition)”, p.37, Lulu Press, Inc
Impressions of America (1906). The Newark (Ohio) Daily Advocate, 20 Apr. 1883, describes an afterdinner speech made by Wilde in Paris about his experiences in the United States: "The brightest and best of the many stories he related was one to the effect that at a ball in Leadville he saw a notice over the piano which read: 'Please don't shoot the pianist. He is doing his best.' "
Oscar Wilde (1997). “Collected Works of Oscar Wilde: The Plays, the Poems, the Stories and the Essays Including De Profundis”, p.3, Wordsworth Editions