Every fish returned to the sea today is an investment in tomorrow's catch.

The most controversial thing I have ever done is to stick around.

我们不是通过经验学习，而是通过对经验的反思学习。

Leadership in mining means being accountable for both profits and the planet.

坚持志向是功绩地位的根本；不懒惰是各种善事的老师。

The harder you work, the luckier you get.

自然实验可以为经济问题提供有价值的见解。