The only limit is the one you set yourself.

"Every story has a beginning, a middle, and an end, but not necessarily in that order."

Never outshine the master. Always make those above you feel comfortably superior.

世界是一本书，不旅行的人只读了一页。

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

Success requires persistence, the ability to not give up in the face of failure, and to learn from that failure.