勇气不是没有恐惧，而是战胜恐惧。

The mind is a dynamic system of interrelated processes.

The decay of political institutions is often a result of the inability to adapt to changing circumstances, leading to rigidity and eventual decline.

Luck has nothing to do with it, because I have spent many, many hours, countless hours, on the court working for my one moment in time.

音乐是灵魂的药方。

快乐不是一件自我存在的东西，它仅是与其他不快乐事情的一个相对比照，这就是快乐的整个情况。