There is an awful lot you can tell about a person by their shoes. Where they're going. Where they've been.

To promote the high-quality development of the coal industry, we must rely on technological innovation and intelligent upgrading.

The beauty of mathematics lies in its ability to reveal the underlying simplicity in what appears to be complex.

"The only thing to do with good advice is to pass it on. It is never of any use to oneself."

Vulnerability is not weakness, it's radical honesty.