The story of a deranged whaling captain's obsessive voyage to find and destroy the great white whale that had ripped off his leg, the novel is at once an exciting sea story, a sociological critique of various American class and racial prejudices, a repository of information about whales and whaling, and a philosophical inquiry into the nature of good and evil, of man and his fate. The novel is heavily symbolic, and many critical formulations have been made as to the meaning of its central symbol, the great white whale Moby-Dick himself. Moby-Dick is greatly enhanced by Melville's rhythmic, rhetorical prose style. Although it is now considered one of the greatest of all novels, Moby-Dick was misunderstood and ill-received in its time. Readers were confused by the book's symbolism, and they failed to grasp Melville's complex view of the world.