Every challenge in the quarry is an opportunity to innovate.

The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

"A great book is a great teacher."

Collaboration across sectors is the only way to solve forestry's greatest challenges.

To define is to limit.

解释：骄纵、奢侈、荒淫、放荡，这是走上邪路的开始。

位我上者，灿烂星空；道德律令，在我心中。