被省略的东西和包含的东西一样重要。
A mathematician's work is never done; there are always new questions to explore and new mysteries to uncover.
可持续性不仅仅是一个流行词,它是负责任林业的基础。我们必须在经济增长和环境管理之间取得平衡。
"The best way to lead is to be vulnerable."