Navy Commander Charles Plumb spent six years in the infamous Hanoi Hilton prison, in solitary confinement most of the time. One day he heard a noise that sounded like a cricket. He investigated and found a moving wire. Then the wire disappeared. When it reappeared, a note was attached which said, ‘Memorize this code and then swallow this note.’ Thus he began communicating with another navy pilot. Soon afterward his new friend sent this message: ‘The biggest problem here is prison brain, thinking like a prisoner. In order to combat it, you'll need three things: faith, commitment, and pride.’ Lots of people on the outside have prison brain, thinking they are hopeless victims to circumstances. Freedom is not the absence of barbed wire. It's the presence of faith, commitment, and pride.