Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

使生活成为可能的唯一事情是永久的、无法忍受的不确定性；不知道接下来会发生什么。

We can’t ignore the economic role of coal, but we also can’t ignore its environmental impact.

要有继续追逐梦想的勇气。