The true measure of success is not just profitability, but the positive impact we create in communities.

思想的清晰性是通向哲学严谨性的第一步。

Leadership in mining means making tough decisions for long-term benefits.

选择不够精当，叙述不够详尽

数学的研究是所有智力和精神进步不可或缺的基础。