Innovation in coal mining isn't just about extraction—it's about doing it smarter, safer, and with greater respect for the environment.

Every small step toward sustainability compounds into a wave of global impact.

The truth is rarely pure and never simple.

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

解释：别人爱我，我也一定会爱别人；别人厌恶我，我也一定会讨厌别人。

There is no friend as loyal as a book.

The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.

Always be prepared. The more you know, the less you carry.