To accomplish great things, we must not only act, but also dream; not only plan, but also believe.

"Always forgive your enemies; nothing annoys them so much."

"I was unconditionally and irrevocably in love with him."

Innovation is not an option; it's a necessity for the survival of the coal industry.

技术应该是无形的。当它运行得最好时，你甚至不会注意到它。