"Every word we write is a step towards understanding ourselves and the world around us."

Coal is not just a commodity, it's a commitment to America's future.

要明智地管理森林，必须首先学会像森林一样思考。

I will hazard a prediction. When you are 80 years old， and in a quiet moment of reflection narrating for only yourself the most personal version of your life story， the telling that will be most compact and meaningful will be the series of choices you have made. In the end， we are our choices. Build yourself a great story.

你必须能够自嘲，不要把自己看得太认真。