心灵是自己的地方，在那里可以把地狱变成天堂，把天堂变成地狱。

最好的领导方式是真实。

The future belongs to those who prepare for it today.

Technology in mining isn't about replacing people; it's about empowering them to do better work.

"You have to believe in yourself when no one else does—that's what makes you a champion."

Attention is the taking possession by the mind, in clear and vivid form, of one out of what seem several simultaneously possible objects or trains of thought.