进步主要取决于人类本性中最强大而不仅仅是最高尚的力量能否被用于增加善。

The past is always a rebuke to the present.

Certification programs are more than stickers on wood products; they represent a promise to our planet.

"The most dangerous stories are the ones we tell ourselves."

每种材料都有自己的记忆和历史。