Your most unhappy customers are your greatest source of learning.

Climate change is the greatest challenge agriculture has ever faced, but also its greatest opportunity for reinvention.

"The world is full of obvious things which nobody by any chance ever observes."

We all owe death a life.

可持续发展必须成为煤炭行业每个决策的核心。

保卫国家政权，是那些君主和臣子等享受俸禄的人谋划的事；保卫整个天下，即使是地位低微的普通百姓也有责任参与。