Everything is what it is， and not another thing.
"The dead are as real as the living, but in a different way."
Sustainability in mining is not an option—it's a necessity for our future.
价格之重要，并不在于金钱是至高无上的。在零星分散的信息必须得以协调的巨型社会中，价格乃是快速而有效的信息传导。
20多岁时，人格的变化比人生中任何其他时期都要大。
Sustainability is not enough—we need regeneration.