The challenges of today's coal industry require bold leadership and vision.

在平安无事的日子里，对待小的事情，应当用对待大事一样慎重的态度去对待。因为天地间的道理不分大小，从眼前来看，都有一个邪恶和正当的界限，不能疏忽怠慢，苟且敷衍，必须辨明道理的邪恶和正当而后对待才行；等到意外事故发生时，处理大的事情，需要用处理小事一样平静的心理去处理。因为人世间的事情虽然很大，但从道理看，只有一个正确和错误的区别，不能惊恐张惶，失了主意，只要根据道理的正确和错误去处理就行了。

科学不是一场竞赛；而是一场耐心与精确的旅程。

Mathematics is the art of giving the same name to different things.

"Every story has an end, but in life every end is just a new beginning."

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

一本好书是一位伟大的老师。