The true measure of success is leaving the land better than we found it.
Sustainability must be the cornerstone of modern quarry operations, not an afterthought.
有时最重要的实验是那些失败的实验,因为它们教会我们什么是行不通的。
The best time to plant a tree was twenty years ago. The second best time is now.
The world needs more love, less hate.