林业的未来在于平衡经济可行性与生态责任。

有时候你必须做你必须做的事情才能生存。

求学的人必须先立下志向。志向确立后，学问就可以按部就班地下功夫。

我不是那种会让对运动的热爱减少的人。

The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.

The beauty of theoretical computer science lies in its ability to abstract and generalize, turning specific problems into universal truths.