You live, you learn. You love, you learn. You cry, you learn. You lose, you learn. You bleed, you learn. You scream, you learn.

Safety isn't just a policy - it's a culture that must permeate every level of our organization.

You don't have to be perfect to be amazing.

重新发现过去并发现它不足以应对现在，比让它逃避你并永远成为一个和谐的记忆概念更令人悲伤。

We must mine coal responsibly today so that our children inherit both energy security and a healthy environment.

对复杂系统的研究告诉我们，简单的规则可以产生令人难以置信的复杂行为。

创新是创造价值和解决问题的关键。