可持续性不仅仅是关于环境；它是为所有利益相关者创造长期价值。

I have suffered and despaired and known death and I am glad that I am in this great world.

The secret of happiness，you see，is not found in seeking more，but in developing the capacity to enjoy less.

We're not focused on the numbers. We're focused on the things that produce the numbers.

采矿效率来自于持续改进，而不仅仅是重大突破。