 His character also helps to establish one of the main themes of the epic; how human choices and efforts become insignificant when fate and immortals are in control.Diomedes follows Homeric tradition closely and having absolute faith on the superiority of fate, he predicts the conclusion of Achilles' efforts to go against fate.Apart from his outstanding fighting abilities and courage, Diomedes is on several crucial occasions shown to possess great wisdom, which is acknowledged and respected by his much older comrades, including Agamemnon and Nestor.