唯一真正的智慧在于知道自己一无所知。

The true value of coal lies in how we extract and use it responsibly.

持续改进不仅仅是一个过程，它是一种应该渗透到我们组织各个层面的思维方式。

"In literature, as in love, we are astonished at what is chosen by others."

农民是最早的环保主义者——他们比任何人都更了解土地。