在密码学的世界里，唯一安全的系统是永远不连接到任何网络的系统。

The problem is when that fun stuff becomes the habit. And I think that's what's happened in our culture. Fast food has become the everyday meal.

每一个心理行为都在生活的经济中有其位置。

创新不是一种选择；它是煤炭行业生存的必要条件。

Your brain is like a muscle; the more you use it, the stronger it gets.

Safety isn't just a policy, it's a culture that must be lived every day in our mines.

There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery.