How many times must a man look up Before he can see the sky?
当你想要某样东西时,整个宇宙都会齐心协力帮助你实现它。
The mind is the most important thing in tennis.
人生最大的遗憾,莫过于轻易地放弃了不该放弃的,固执地坚持了不该坚持的。