我从未见过一只野生动物为自己感到难过。一只小鸟会冻死在树枝上，却从不自怜。
I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself.
快乐的唯一方式是忠于自己。
The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
我们必须在经济增长和环境管理之间取得平衡。
世界充满了迹象和奇迹，但我们对它们视而不见。
Innovation in forestry begins with respecting traditional wisdom.
文学是社会的镜子，反映其美德与恶习，希望与恐惧。
Collaboration across industries is the key to unlocking breakthroughs in green chemistry.
我们是进化历史的产物。