Emperor Taizong and Li Shimin paid special attention to humble submissives. There is a true story about him. At that time, Emperor Taizong planned to rebuild Ganyuan Palace as a palace for foreign tourists. But a small official named Zhang said that the Epang Palace was built and the Qin Dynasty perished. After Zhang Huatai was repaired, the State of Chu was scattered; The Qianlong Temple was built and the Sui Dynasty fell. This is a lesson from history. Now, your majesty has spent hundreds of millions of dollars to build a large building. Your Majesty's fault far exceeds that of Emperor Yang Di. Zhang compared Emperor Taizong to a tyrant, and all the civil servants in the Qing Dynasty worked for him. However, Emperor Taizong did not blame Zhang, but ordered him to be summoned. Ask directly, Qing said that I am not as good as the emperor. Zhang bluntly replied: "If your majesty really built the temple, it would be as confusing as the Shang and Zhou Dynasties. Hearing this answer, Emperor Taizong was not angry, but withdrew his decree and stopped rebuilding the Gan Yuan Temple. He also praised Zhang and gave him 500 silks. As a feudal emperor, Emperor Taizong had such trainable courage, which still has positive reference significance today.