Your self-worth is determined by you. You don't have to depend on someone telling you who you are.

解释：冬天不洗冰水，并不是吝惜冰；夏天不烤火，也不是舍不得火。而是因为这样做对身体不适宜。

Sometimes you have to lose yourself to find yourself.

To avoid criticism, do nothing, say nothing, be nothing.

I want to leave a legacy that goes beyond tennis.

"Silence is not the absence of something, but the presence of everything."