作家必须成为他们时代的见证者。
In the mining sector, we must balance economic growth with environmental stewardship to create long-term value.
解释:向外物游览就要要求外物的完备,向自己内心求取,则能充实完善自身。
Scientific research should solve practical problems, not just stay on papers.
孤独は、人間の本質である。