I always try to be positive and optimistic in life.

道气常在天地内外运行流转，之所以看不见，是因为它极其清微。

法律的概念不是一个事物的概念，而是一个复杂的社会实践的概念。

Evolutionary psychology is not about what's unchangeable in human nature, but about what was adaptive in our ancestral environment.

成功不是终点，而是一个持续改进和学习的过程。