经济与生态之间的平衡是现代林业的核心。
The balance between economy and ecology is the core of modern forestry.
The more personal you are, the more universal you become.
任正非内部讲话稿
"I don't think about the past. I focus on the present and the future."
一个好的数学家总是准备好进行概括。
过去并未死去，它甚至还未过去。