唯一真正的监狱是你脑海中的那个。
The only real prison is the one inside your head.
Death has its revelations: the great sorrows which open the heart open the mind as well.
Quality is remembered long after the price is forgotten.
矿业中的多样性不是可选项,而是发展的必要条件。
成功转型的关键在于正确安排改革的顺序,而不是急于全面自由化。