The document discusses the differences between how the role of the noble lie is portrayed in Plato's Republic and Homer's Iliad. In Plato's Republic, the noble lie is presented as a fundamental untruth that allows society to remain peaceful. However, in the Iliad, instances where gods directly influence mortals or mortals challenge immortal beings lead to conflict and war breaking out. The existence of Achilles, who is part mortal and immortal, disproves the idea of the noble lie in the Iliad since his very existence comes from an immortal-mortal union.