可持续林业不仅仅是砍伐树木，更是培育文明。
Sustainable forestry isn't just about cutting trees, it's about growing civilizations.
I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.
生命太短暂，不要把时间浪费在无关紧要的事情上。
世界的秩序不是给定的，而是构建的。
当一个人情绪低落的时候，他会格外地喜欢看日落。
