Final answer:
George lies to protect Lennie's memory and reputation, showing his loyalty and recognizing Lennie's innocence and the tragedy of his actions due to his lack of understanding.
Step-by-step explanation:
George lies about the events that led up to Lennie's death because he wants to protect Lennie's memory and reputation. This action can be interpreted as a final act of friendship and loyalty towards Lennie. George knows that Lennie did not mean to kill Curley's wife, and he understands that Lennie's death was a mercy killing to save him from a worse fate at the hands of the angry mob. By lying, George is ensuring that Lennie is remembered more for his innocence and less for the violence of his final act. Moreover, in the context of the quote provided, it seems George is reflecting on the nature of courage and the challenges one must face, which may further indicate his protective feelings towards Lennie.