I remember as if the Bible said, "All this has happened before, and it will happen again". Throughout human history, it is true that human beings are always repeating past mistakes. For example, after the war, people are rethinking and summing up experiences and lessons, but after a certain period of time, you will find that what human beings reflect on is what mistakes they made in strategy and tactics and how to win in the next war. This is also determined by human nature, so some people put forward the view that "human nature is evil". From these perspectives, the phrase "there is no future if you forget history" is just high-sounding empty talk.