The decline of a declining dynasty begins with the annexation of land, corruption in official circles, and the enjoyment of emperors. The wheel of history is advancing all the time. It will crush the loyal backbone and crush the evil claws. Everyone is doing what he thinks is right, and "money" is indispensable at every step.
For money, some people may oppress the people, or they may betray their country for glory, and some people may want to die to keep the secret for money. A penny cannot kill a hero. In the Northern Song Dynasty, the country's annual income was 20 million silver, and in five years it was ten million taels of gold. The story tells the story of how under an emperor who was "devoted to small benevolence but not careless", the people gradually lost their land, the country lost its financial resources, and how a dynasty slowly turned bad.
Intention: Working hard is useful at any time