Most people didn't think Cassius Clay could win the fight against Sonny Liston, but he did win, and by winning, he became the heavyweight champion of the boxing world, at least the boxing world in the United States.
I thought he was the best thing that ever happened to boxing from my era because he was good, but it wasn't so much his ability in the ring, it was the draw.
And one of them is sort of advice on how to deal with particular enemies, because as they say in boxing styles, make fights, same things true in warfare.