The steel industry must embrace sustainability to survive in the 21st century.
The existence of a legal system is a matter of social fact.
学者学习古人,开始时接触到的是粗浅的内容,中期接触到精华,最终领悟到其神妙变化。
The past is never dead. It's not even past.
True progress happens when we stop optimizing for the past and start building for the future.