Jethro gets one final lesson from Bill about maturity—adults don’t cry about things they can’t change. While this sounds harsh, it accords with Jethro’s experience that people simply must endure many of life’s unavoidable hardships. Bill has made his choice, even though it wasn’t easy. Ultimately, he follows his conscience even if this means choosing a different path from most of the people around him. And he places his convictions above even the desire to stay with his family. Self-determination is a quintessentially American value, and the book celebrates Bill for his courage in following his convictions, even though they cost him dearly.