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大自然是有史以来最伟大的化学家,而我们才刚刚开始理解它的秘密。
The effects of policy changes are often more nuanced than simple economic models suggest.
You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make.
The best fertilizer is the farmer's shadow.
The only person you should try to be better than is the person you were yesterday.
La historia no es mecánica porque los hombres son libres para transformarla.