Sustainability isn't an option; it's a necessity for the coal sector.

我年轻时领略过一种高尚的情操，我至今不能忘掉，这是我的烦恼。

To feel much for others and little for ourselves； to restrain our selfishness and exercise our benevolent affections， constitute the perfection of human nature.

只有不断学习，才能不断进步。

Architecture should resonate with its context, reflecting the culture and history of its place.