变化不仅仅是生活的必要，它就是生活本身。
Change is not merely necessary to life—it is life.
The true measure of success in forestry is leaving the land healthier than we found it.
追求数学知识是一段永无止境的旅程。
The only thing we have to fear is fear itself.
The best stories are the ones that leave you with more questions than answers.
Forgetting is more powerful than despair.