The advantage, the luxury, as well as the torment of the novelist, is that there is no limit to what he may attempt- no limit to his possible experiments, efforts, discoveries, successes.
Source: In Shorter Bartlett's Familiar Quotations, by John Bartlett, 1937, 1980, 1992.
-- Henry James, Jr, (Apr 15 1843-1916), English author; He was a master of the psychological novel and innocents abroad motifs, e.g., The Portrait of a Lady, 1881.