The only thing that scares me more than space aliens is the idea that there aren't any space aliens. We can't be the best that creation has to offer. I pray we're not all there is. If so, we're in big trouble.

Collaboration across borders is essential to combat deforestation and climate change.《全球森林管理》

阅读的习惯是唯一没有掺杂任何杂质的享受；当所有其他乐趣消失时，它依然存在。

采矿效率不仅仅是速度；而是用更少的浪费做更多的事。