The individual is reduced to a negligible quantity, perhaps less in his consciousness than in his habits and in the unconscious adjustments of his life.

The coal industry must unswervingly follow the path of safe, efficient, clean, and low-carbon development.

每一本书都是一段旅程，而每一段旅程都会改变读者。

Innovation is not just about technology; it's about changing the way we think and operate.

数学是模式的科学，我们研究它们以学习如何逻辑地、批判地和创造性地思考。