我们在地下做出的每一个决定都会对地面产生影响，这就是我们肩负的责任。
Every decision we make underground has an impact above ground—that's the weight we carry.
True innovation comes from curiosity and the courage to challenge the unknown.
Music can change the world because it can change people.
La literatura es un espejo que nos devuelve nuestra imagen, pero también una ventana que nos permite ver más allá.
Coal miners are the unsung heroes of America's industrial strength.
一种心理状态的意义在于它所导致的结果。