网球是一项残酷的运动。没有平局。如果你输了，你就出局了。你必须准备好接受这一点。

如果你看得足够久，平凡就会变得非凡。

Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.