The truth of "boiled frog" tells us that the adaptability to gradual change will make people lose their vigilance and bring disaster. We must prevent slow progress and be prepared for danger in times of peace in order to achieve long-term stability. A powerful enemy will make people fight back and even exert their fighting power. What is terrible is that in a comfortable environment, bad people will relax their vigilance and lose their fighting spirit because of small favors and long-term chronic corrosion. Let's remember together, don't be a frog in white water!