What passage BEST reveals a flaw of odyessus?

In Book 9 of "The Odyssey," Odysseus reveals his arrogance and lack of humility when he tells the cyclops Polyphemus his real name, leading to further danger for himself and his crew members as Polyphemus prays to Poseidon to seek revenge on him. This decision reflects Odysseus's overconfidence, which ultimately leads to more challenges on his journey home.