没有人民的普遍知识,自由就无法得到维护。
Liberty cannot be preserved without a general knowledge among the people.
I am tomorrow, or some future day, what I establish today. I am today what I established yesterday or some previous day.
Sustainability in mining isn't an option—it's a necessity for our future.
真正的困难不在于构思新想法,而在于摆脱旧观念。