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Literary Devices Themes Themes are the fundamental and often universal ideas explored in a literary work. The Limits of Knowledge As Ishmael tries, in the opening pages of Moby-Dick, to offer a simple collection of literary excerpts mentioning whales, he discovers that, throughout history, the whale has taken on an incredible multiplicity of meanings. Over the course of the novel, he makes use of nearly every discipline known to man in his attempts to understand the essential nature of the whale. Each of these systems of knowledge, however, including art, taxonomy, and phrenology, fails to give an adequate account. The multiplicity of approaches that Ishmael takes, coupled with his compulsive need to assert his authority as a narrator and the frequent references to the limits of observation (men cannot see the depths of the ocean, for example), suggest that human knowledge is always limited and insufficient. When it comes to Moby Dick himself, this limitation takes on allegorical significance. The ways of Moby Dick, like those of the Christian God, are unknowable to man, and thus trying to interpret them, as Ahab does, is inevitably futile and often fatal. |