The secondary rules are those that provide for the creation, alteration, and extinction of primary rules.

我远行万里来看世界的奇迹，但真正让我惊讶的是我在旅途中遇到的人。

The countries that have benefited least from fossil fuels should not bear the heaviest burden of climate change.

"The past is never dead. It's not even past."

Innovation in stone extraction must always balance efficiency with sustainability.《Stone and Stewardship》

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

真正的进步来自于行业和环保人士的合作，而非对立。