Luke's final words are:
"I'm sorry, Annabeth. I never meant to hurt you. I just wanted... to be free."
These words reveal the depth of Luke's internal struggle and the extent of his pain and desperation, even as he chooses to fight for Kronos. They also emphasize the tragic nature of his character arc and the power of hope and redemption.
However, it's important to note that this quote is often interpreted as part of his "false hope" plan to manipulate Annabeth, as he knows her weakness is her empathy for those who are hurting. Whether he truly meant those words or not is left to interpretation, adding to the complexity of his character.