The carpenter, who has always had a great reputation, decides to retire. Boss asks him to build one more house. Reluctantly, he does.
Heart not in it, does sloppy job cos he wants to finish. Goes to boss, I’m done! Great. Let’s go see the house. They do. Boss says, “To thank you for all these years of great work, we’d like to give you this house. Here are the keys”. i.e. always do your best.