Paul's Captivity Letters

How many of the best writings in human history about freedom are written by people in prison? I think of Dietrich Bonhoeffer, who writes his letters from prison. Why is it that the best writings on freedom come from prison? And simultaneously, why the worst writings come fromPeople in prison? Of course, Q here, Hitler, Mein Kampf, which was written in prison as well. What are we going to do in prison? Are we going to be a Solzhenitsyn, a Mandela? Or are wegoing to be somebody that produces vile hatred?