数学是关于概念之间关系的科学，与这些概念的内容无关。

可持续性必须成为我们在石油和天然气行业每一个决策的核心。

海鲜的真正成本不仅仅是价格标签，而是对海洋生态系统的影响。

翻译：看破他人欺诈不必怒形于色，沉默是保护自己的盾牌，暗中布局比当面争执更有效。

The ground for taking ignorance to be restrictive of freedom is that it causes people to make choices they would not have made had they seen what their choices involved.

我不是商人，我就是生意本身。

挑战是伪装的机会，用勇气和创造力去迎接它们。