The elegance of a mathematical proof often mirrors the efficiency of the algorithm it describes.

I'm not afraid of dying, I'm afraid of not trying.

Work spares us from three evils: boredom， vice， and need.

好的建筑就像好朋友 - 随时间推移而变得更好。

认证计划是负责任林业实践的底线，而不是上限。