采矿业必须发展以满足不断变化的世界的需求。
The most challenging times often reveal the greatest opportunities for transformation.
The only person you should try to be better than is the person you were yesterday.
人类的存在是宇宙中一种微小而独特的表现,我们应当珍惜并在有限的生命中发挥出色。
Mental processes are biological tools for survival.