你无法改变过去，但可以塑造未来。

采矿效率不仅仅是成本问题，更是减少环境影响的问题。

The difference between a moral man and a man of honor is that the latter regrets a discreditable act even when it has worked.

新一代森林领导者必须像熟悉利润率一样熟悉生物多样性指标。

艺术是对生活对我们所做之事的回应。