无偿工作的价值在经济衡量中常常不可见，但它却是社会的支柱。
The value of unpaid work is often invisible in economic measures, yet it is the backbone of society.
"It takes ten times as long to put yourself back together as it does to fall apart."
释义：在人的一生中，应当做到无愧于古人。即要努力做到像古代的贤人一样，有高尚的品德和行为，不因个人的私欲而做出违背道德和原则的事情。
No wise pilot, no matter how great his talent and experience, fails to use his checklist..
技术可以帮助我们监测森林，但拯救它们的是人类的承诺。