The mind is the most important thing in tennis.

Hate the sin, love the sinner.

Hope can be a powerful force. Maybe there's no actual magic in it, but when you know what you hope for most and hold it like a light within you, you can make things happen, almost like magic.

本当の強さとは、弱さを認めることだ。

提高就是要改变,而要达到完美就要不断改变。