可持续性不是选择,而是矿业未来的必然要求。
市场保持非理性的时间可能比你保持偿付能力的时间更长。
Mathematics is a language that allows us to describe the indescribable.
Life is not easy for any of us. But what of that? We must have perseverance and above all confidence in ourselves. We must believe that we are gifted for something and that this thing must be attained.