Carl Spitzweg, The Poor Poet (1839)
"Bookmen taste, chew, masticate, nibble, ingustate, devour, gorge, cram; they are subject to appetite and repletion; starving, over-eating, the one reacting upon the other, and thus precipitating indigestions and dyspepsias." -- Holbrook Jackson, The Anatomy of Bibliomania (1930)