煤炭的未来在于可持续和负责任的采矿实践。
The future of coal lies in sustainable and responsible mining practices.
Happiness is secured through virtue; it is a good attained by man's own will.
People with a clear sense of identity know who they are and what they stand for. They have a strong sense of self and are not easily swayed by others.
Quality is more important than quantity. One home run is much better than two doubles.
Work to become， not to acquire.