"The serve is the most important shot in tennis."

"You can't manage what you can't measure."

天下不怕没有能臣，怕的是没有君主去使用他们；天下不怕没有财货，怕的是无人去管理它们。

Whatever you're meant to do, do it now. The conditions are always impossible.

理解数学就是掌握宇宙的语言。