What does Achilles tell Odysseus about fame?

In the Underworld, Achilles tells Odysseus that he would rather be a poor farmer alive than the greatest warrior dead, emphasizing that the glory of fame is fleeting and ultimately hollow. He expresses regret over his early death and the desire for a long life filled with ordinary experiences over the eternal fame that comes with heroism. Achilles highlights the pain of losing the chance to live a full life, suggesting that true worth lies in life itself rather than in posthumous glory.