The quote "more like a king, composed, farther and farther on" has a very important meaning. It is saying that you should, rather than be shy, or to not have pride in one's self, instead compose yourself "more like a king". It is saying that you should be proud, and that you should carry yourself in a way that makes others admire you, because you have pride in yourself.
There are three bases in baseball before a player reaches the home plate. These bases are disposed in a rhombus shape called "baseball diamond"
