1. Insomnie fiévreuse in the original French, published in Le Figaro in 1909. See: Filippo Tommaso Marinetti, “The Founding and Manifesto of Futurism,” in Mary Ann Caws, ed., Manifesto: A Century of Isms (Lincoln, NE: University of Nebraska, 2001), 187. Emphasis mine.
2. Arthur Symons, The Symbolist Movement in Literature (London: Constable, 1908), 14.
3. T. S. Eliot, Inventions of the March Hare: Poems, 1909–1917, ed. Christopher B. Ricks (New York: Harcourt Brace, 1996), 43.
4. Hugh Campbell, A Treatise on Nervous Exhaustion (London: Henry Renshaw, 1875), 6–7.
5. Thomas Brown, Lectures on the Philosophy of the Human Mind, vol. 1 (Philadelphia: John Grigg, 1824), 34.