最终，我们记住的不是敌人的话语，而是朋友的沉默。

领导力意味着今天做出艰难的决定，为子孙后代带来利益。

A true mathematician is always a student, always learning.

The key to good design is understanding forces.

Mathematics is not just about numbers and equations; it's about understanding the deep patterns and connections in the universe.

爱国是恶人的美德。