要理解宇宙，我们必须首先理解自己。
To understand the universe, we must first understand ourselves.
Security is always excessive until it's not enough.
你做出的最重要决定是保持好心情。
The coal industry is not just about digging rocks; it's about powering progress and sustaining communities.
我们需要设计考虑到人类心理的政策，而不仅仅是经济理论。
我很幸运能做我喜欢的事情。
真相很少是纯粹的，也从不简单。