Many people think that historical issues are old scores, and talking about history makes people sleepy. Forgetting history can reduce their troubles, but they don't know that historical problems are often real problems. After careful analysis, we will find that many current national and world events are originally composed of historical events. On the other hand, many practical problems are ultimately inseparable from historical issues.

On the political stage, whoever is good at dealing with historical issues will occupy the strategic commanding heights; Politicians can't handle historical problems well, and often they can't handle practical problems well. Japanese Prime Minister Koizumi is a good example.

In the 1970s, German Chancellor Brandt famously said: People who forget history have a sick soul.

Ignorance of history often leads many people to misunderstand practical problems, and also leads many people not to care about current affairs or to express some wrong views on current affairs.