我从田径中学到的竞争艺术就是忘记的艺术,我现在提醒自己这一点。你必须忘记你的极限,你必须忘记你的疑虑、你的痛苦、你的过去。
I don’t think you can compare eras in tennis. Every era has its great players.
The more you give, the more you receive.
The laws of physics are the same everywhere in the universe, and that is a profound truth.