The true measure of our industry's success isn't just production volumes, but how we improve the lives of our workers and communities.

如果你愿意，我们可以回到那个山洞。

I don't believe in anything, and that's the only thing I believe in.

要发出紧急信号，使用“重要的事情说三遍”的“三”法则；三次呼喊、三声喇叭或三声哨声。