Read the excerpt from Chapter 28 of Moby-Dick.His bone leg steadied in that hole; one arm elevated, and holding by a shroud; Captain Ahab stood erect, looking straight out beyond the ship’s ever pitching prow. There was an infinity of firmest fortitude, a determinate, unsurrenderable willfulness, in the fixed and fearless, forward dedication of that glance.Which best describes the theme Melville develops in this excerpt from the chapter?