We are not asked to be successful, only to be faithful.

解释：不注意天时，财富就不能增长；不注意地利，粮食就不会充足。

商业中最强大的工具是一个强大的团队。

The motor of our ingenuity is the question ‘Does it have to be like this?’, from which arise political reforms, scientific developments, improved relationships, better books.

"The only real prison is fear, and the only real freedom is freedom from fear."

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