The journey of solving a mathematical problem is as important as the solution itself, for it teaches us patience, persistence, and the joy of discovery.

可持续发展不是选择，而是煤炭行业的必然要求。

每一个人都应当为自己的行为负责。

真正的艺术家创造自己的世界。

过去是一桶灰烬。