孤独是你为自由付出的代价。
Loneliness is the price you pay for freedom.
读书人应当以天下大事为自己的责任,不能仅仅做一个只会钻研书本的学者。
Certification schemes are the grammar of responsible forestry—they give structure to our good intentions.
你看不见你自己,你所看见的只是你的影子。
Sustainability is not an option; it’s a responsibility.