1. The story of Su Wu herding sheep is well known to all women and children. After Su Wu was detained in Xiongnu, Xiongnu nobles first lured him with fame and fortune, and then threatened him with torture. But Su Wu always righteously, would rather die than surrender. The Xiongnu nobles could do nothing, so they "moved their family to Beihai". Su Wu is "digging wild rats and pulling weeds to eat". In such a difficult environment, he still leans on the shackles of the Han dynasty and refuses to surrender the shackles to disgrace his life. When he went to China, he was in his prime. When he returned to Han, his hair and beard were all white. He became a famous figure who insisted on national integrity in the history of our country.

2. In the late Qing Dynasty, after the failure of the Reform Movement of 1898, Kang Youwei and Liang Qichao fled to Japan. Tan sitong is "willing to kill thieves, unable to return to heaven". He firmly believes that "without walkers, there is no future; No dead, no reward for the Lord, calmly died, leaving a famous sentence "I laugh at the sky from the horizontal knife, leaving courage." "