The only way to grow is to step out of your comfort zone.
我相信简单的生活,有纪律的生活,专注的生活。
人的精神比单纯的体力更重要,人中的精神火花可以被扇成火焰。
I don't chase records. I chase excellence.
The mind is the most important thing in tennis.
Curiosity is what drives science forward, but wisdom must guide its application.