" Éris—strife—between heroes, it will be recalled, was a favorite theme of epic. Looked at coldly, stripped of the dignity of their noble epic contexts, these quarrels are almost always petty. In the Cypria, "Achilles quarrels with Agamemnon because he received a late invitation" to a feast; in the Aethiopis, "a quarrel arises between Odysseus and Aias over the armor of Achilles"; the Odyssey tells of a quarrel between Achilles and Odysseus at a festival, not to mention the Iliad's own dramatic action arising from the "quarrel" between Achilles and Agamemnon. "

― Caroline Alexander , The War That Killed Achilles: The True Story of Homer's Iliad and the Trojan War