The quote "I didn't really steal it. I just borrowed it for all eternity" from Kurt Vonnegut Jr.'s novel "Mother Night" reflects the complex themes of theft and ownership within the narrative. The statement, delivered with a blend of humor and irony, highlights the ambiguous moral landscape that characters navigate. It suggests that the act of borrowing can blur the lines between possession and appropriation, prompting readers to reconsider their own perspectives on morality and ethics.