石材行业必须拥抱可持续发展才能长久生存。
The stone industry must embrace sustainability to survive in the long run.
伟大来自于相信自己，永不放弃。
Thinking is the hardest work there is, which is probably the reason why so few engage in it.
Man's search for meaning is the primary motivation in his life.
Coal is China's main energy source and will remain the cornerstone of China's energy security for a long time to come.