Which episode of "Bright Sword" said that I am not a stone but I have a heart?

Episode 18 of Li Youbin's version of the TV series "Bright Sword":

Due to the murder of the second leader, Li Yunlong was demoted to the commander of the first battalion, and the position of commander was replaced by Zhao Gang. Punished once.

While the soldiers were training, Li Yunlong reported to Zhao Gang that Zhao Gang punched Li and accused Li of leaving a regiment of thousands of people to Zhao Gang and bullying Zhao Gang because he was a scholar and would not lead an independent regiment. Li Yunlong said that he lost three things while Political Commissar Zhao was injured: his wife was killed by the Japanese, his brother who had been through life and death had his head chopped off by bandits, and Political Commissar Zhao was in a coma for 23 days. I, Li Yunlong, have a heart and a liver. Even if it is a stone, I should keep it warm if I hold it in my chest...

It is purely hand-made, I hope you will adopt it