可持续性必须成为我们开采每一块石料的核心，否则我们什么也不该开采。
Sustainability must be at the core of every stone we extract, or we extract nothing at all.
The man in the planning room, whose specialty under scientific management is planning ahead, invariably finds that the work can be done better and more economically by a subdivision of the labor.
The most exciting discoveries often come from unexpected places.
The best preparation for tomorrow is doing your best today.
We're all in this together, that's the message.
I'm not a role model. I'm a model role.