圆的周长大于任何内接等边多边形的周长，小于任何外切多边形的周长。

我们今天种下的每一粒种子都是对后代的承诺。

"Reading is the key to unlocking the world."

Zero Defects is a performance standard. It is the standard of the craftsman, regardless of his or her trade.

The revolution is not an apple that falls when it is ripe. You have to make it fall.

海洋不是无底洞，资源有限，敬畏自然才能长久发展。

Innovation is not just about creating new products; it's about reimagining how we solve problems.

The more you know, the more you see.