What did Achilles reveal about his true nature in his last speech to king Priam?

In his final speech to King Priam, Achilles reveals his profound humanity and capacity for empathy, acknowledging the shared grief of both warriors over the loss of their loved ones. He reflects on the inevitability of death and the futility of glory in war, expressing a deep understanding of loss and sorrow that transcends their conflict. This moment underscores his dual nature as both a fierce warrior and a deeply emotional individual, highlighting the tragic cost of pride and vengeance.