In 1, the sentence "iron shoulders bear morality" comes from Yang Jisheng's sentence "iron shoulders bear morality and write articles skillfully" and Li Dazhao's sentence "iron shoulders bear morality and write articles skillfully". The phrase "iron shoulders bear morality" is widely used to describe people with lofty ideals who dare to uphold justice and shoulder heavy responsibilities. 2. The TV series Iron Shoulder Morality is a major historical TV series that reproduces Li Dazhao's revolutionary career.