Innovation in mining isn't optional—it's essential for survival and growth.
采矿创新不是可选的——它对生存和发展至关重要。
In the short run, the market is a voting machine but in the long run, it is a weighing machine.
生活即教育。
The body is the first territory of political struggle.
"Happiness is not something ready-made. It comes from your own actions."