国家是理性的行为者，他们总是会按照自己的利益行事。

If there's a book that you want to read, but it hasn't been written yet, then you must write it.

可持续林业不是成本，而是对韧性的投资。

The paper industry has a responsibility to lead the way in environmental stewardship.

能源的未来在于包括传统能源和可再生能源在内的多样化组合。

过去是一个无处不在的阴影。