Whistler's Gentle Art, a classic in the literature of insult and denigration, might well be subtitled "The Autobiography of a Hater," for it contains the deadly sarcasm and stinging remarks of one of the wittiest men of the nineteenth century. Whistler not only refused to tolerate misunderstanding by critics and the so-called art-loving public -- but launched vicious counterattacks as well. His celebrated passages-at-arms with Oscar Wilde...