You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.

循环经济不是一种趋势，而是制造业的未来。

《诗经》三百篇，其内容可以用一句话概括：“思想纯正，没有邪恶。”

我对中间状态、事物之间的相互关系感兴趣。

The progress of society depends on the efforts of each individual.

我不会继续敲那扇不为我打开的老门。我要创造自己的门，然后走进去。