可持续发展不仅仅是一个流行词,它是负责任的林业的基础。
The deepest theorems often arise from the simplest observations.
The desire for recognition, the thymotic part of the soul, is the most political part of man.
在科学中,最令人兴奋的短语不是“我发现了!”,而是“这有点奇怪...”