Comparing Henry David Thoreau and Herman Melville's Writings Henry David Thoreau and Herman Melville focused their writings on how man was affected by nature. They translated their philosophies though both the portrayal of their protagonist and their own self exploration. In Moby Dick, Melville writes about Ahab's physical and metaphysical struggle over the great white whale, Moby Dick, symbolic of man's struggle against the overwhelming forces of nature. Ahab's quest is reported and experienced through the eyes of Ishmael. Melville's use of the third person's biographical standpoint