当我停止相信自己能赢的那一天，就是我停止打网球的那一天。

The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

A proof is a device for convincing someone else that a mathematical statement is true.

无人机的未来是智能、协同和自主的。

"In the long run, the companies that win are the ones that are the most customer-focused."

每个圣人都有过去，每个罪人都有未来。