The author traveled to the Battle of Changping, was in a flesh-and-blood battlefield, and led the main force of the Zhao army to break out. Zhao Kuo sacrificed his life generously to cover the retreat of the main force. After witnessing Zhao's sensual behavior, the author knew that the trajectory of history could not be reversed after all, so he left Zhao and went to Qin. The author laments that the Chinese nation should have entered the threshold of democracy 2,000 years earlier than the West. However, it turned away from democracy many times and established an autocratic feudal system that spanned thousands of years.
