But for all our differences, for all the times we sparred, I never tried to hide, and I think John came to understand, the longstanding admiration that I had for him. By his own account, John was a rebellious young man. In his case, that's understandable – what faster way to distinguish yourself when you're the son and grandson of admirals than to mutiny? Eventually, though, he concluded that the only way to really make his mark on the world is to commit to something bigger than yourself. And for John, that meant answering the highest of callings – serving his country in a time of war. Others this week and this morning have spoken to the depths of his torment, and the depths of his courage, there in the cells of Hanoi, when day after day, year after year, that youthful iron was tempered into steel.