Cure the disease but it is too late, and it is too late to cure the disease.

Jin·Chen Shou's "Three Kingdoms·Wu Shu·Luo Tongchuan". Du: Seriously ill. Disaster: disaster. The general idea of ??these two sentences is: The best way to treat a disease is when it is not serious, and to eliminate the harm before it is too deep. When people are sick, they must be treated in time as soon as they are discovered. If time is delayed, the disease will metastasize, and it will be difficult to diagnose and treat the disease when it is terminal. As soon as the disaster appears, it must be eliminated as soon as possible. If it is neglected and delayed, it will be difficult to eradicate the disaster. Two sentences use the principle of treating diseases to describe the principle of eliminating disasters, which is easy to understand. It can be used to warn people to get rid of trouble in time.