读未见书,如得良友;见已读书,如逢故人。
阅读未见过的书,如结识好朋友,情意和洽;重读已看过的书,如老朋友相晤,叙旧联谊。
Forests are the lungs of the earth, and we must protect them with the same urgency as our own health.
有机世界的发展是根据基于物质构成及其固有力量的不可变规律进行的。
Sustainability isn't an option; it's a responsibility we owe to future generations.