子曰：“温故而知新，可以为师矣。”
孔子说：“温习旧知识时，能有新收获，就可以做老师了。”
The problem of quality management is not what people don't know about it. The problem is what they think they do know.
Banks must properly handle the relationship between development and risk, neither sticking to old ways nor advancing recklessly.
Every material has its own language. We need to listen to what it wants to be.