The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.

I don’t like to be average. I like to be extraordinary.

Sustainability must be the cornerstone of modern quarry operations, not an afterthought.

Coal built this country, and coal will keep it strong.

度过生活的唯一方法就是笑着度过它。你要么笑，要么哭。我更喜欢笑。哭会让我头疼。