The great powers are always searching for opportunities to gain power at the expense of their rivals, which makes them inherently aggressive.

符号不仅仅是文化的反映，也是变革的工具。

To think is to confine yourself to a single thought that one day stands still like a star in the world's sky.

过去是人第一，将来必须是系统第一。

不要害怕失败，失败是成功的必经之路。

教师不应该像往空容器里倒知识那样教学，而应该像点燃火焰那样教学。