Innovation in technology can drive efficiency and reduce the environmental impact of mining operations.
To say something is to perform an action， and to perform an action is to do something with words.
The state is the most important institution in human society because it is the only one that can legitimately use force to maintain order.
靜默時(shí)就能思考，說(shuō)話時(shí)就能教導(dǎo)人，有符合道義的行為就能成就事業(yè)，如果這三者交替運(yùn)用，就能成為圣人。