Because on the day of the national crisis, Gu Yanwu put down the book in his hand, picked up the sword and rushed to the front line. Even if the Ming Dynasty has perished, he will still express his patriotism through writing books. It was he who said the sentence: "Everyone is responsible for the rise and fall of the world"! Gu Yanwu, whose original name was Gu Jiang, was born in the prosperous age of "Wanli Zhongxing" and had a good background. However, he was ridiculed from an early age. Because he was always ill and had a strange hobby for learning. He didn't like to read the Four Books and Five Classics. He was only interested in astronomy, geography and martial arts. Everyone thought he was a weirdo. When he grew up, he repeatedly ran into obstacles when taking the imperial examinations like everyone else. When he was 27 years old, he said in a fit of anger that he would never take an exam again! He no longer took part in the imperial examinations and began to practice martial arts.

Then, the Qing army swept across the entire south of the Yangtze River. People who had previously been eager to be loyal to the Ming Dynasty began to retreat again and again. The Qing army slaughtered soldiers everywhere, and once prosperous towns suddenly turned into ruins. In this way, Gu Yanwu, who was eager to serve his country, put down the book in his hand, picked up his sword, and embarked on the bloody road of serving his country. Since then, he has experienced countless bloody battles, participated in many anti-Qing teams, and fought side by side with military generals. At first, he was just a weak scholar, but later he surprised everyone. Facing the ferocious fighting power of the Eight Banners soldiers, he did not flinch. He rushed to the front line many times and fought on the edge of life and death many times.

In a flash of 20 years, Gu Yanwu changed from a passionate young man to a gray-haired old man. He tried his best but failed to save the Ming Dynasty from extinction. The general trend of the demise of the Ming Dynasty and the prosperity of the Qing Dynasty is irreversible, and many colleagues who fought together have become desperate. Some people have lived in seclusion in the mountains and forests, and some have traveled overseas, but Gu Yanwu began to continue to express his patriotism in the form of writing books!

Everyone is responsible for the rise and fall of the world. Gu Yanwu did it, and he persisted silently. In five thousand years of civilization, this persistence has never gone out of style. Therefore, China will always have tenacious vitality!