Sustainability must be at the core of every decision we make in the coal industry.

The longer you look at an object, the more abstract it becomes, and, ironically, the more real.

我试图让不可见的东西变得可见。

The earth gives us its treasures, but it's our duty to give back more than we take.

Man is always something more than what he knows about himself. He is not what he is simply once and for all, but is a process.