加强国际合作，推动煤炭行业技术和管理水平的提升。

War is a tragedy, but sometimes necessary.

The purpose of morality is to teach you, not to suffer and die, but to enjoy yourself and live.

The study of economics is ultimately the study of human behavior and its consequences.

Every book is a journey, and every journey is a book.

"The beauty of literature is that it allows us to live a thousand lives in one."

可持续性不是选择，而是矿业未来的必然要求。