1. In the first year of Zhenguan (627), a man named lawyer Yuan committed a crime and was sentenced to death. Judicial judge Sun Fuga was dissatisfied with this kind of sentence, so he remonstrated and said: "According to the current law, Lawyer Yuan should not be sentenced to death, and judges cannot impose arbitrary punishments out of hatred." After hearing this, Emperor Taizong of the Tang Dynasty not only Instead of getting angry, he rewarded Sun Fujia with the Lanling Princess Garden worth millions of dollars.

Some ministers did not understand this and asked Taizong why he did this. Emperor Taizong of the Tang Dynasty replied: "I have just ascended the throne, and I need to create a culture of daring to give direct advice in the court. Sun Fujia is the first person who dares to criticize the government since I came to the throne, so I want to reward him well." The ministers saw that Emperor Taizong of the Tang Dynasty had the sincerity to accept remonstrances humbly, so he competed to give direct remonstrances, and a group of critics who dared to criticize the government emerged.

2. In the first year of Zhenguan, Emperor Taizong ordered officials who falsified their official rank and experience to be punished with death if they did not confess. Later, the falsifiers were found out, and Tang Dazong sentenced them to death. Dali Shaoqing Dai believed that according to Tang law, these forgers should not be sentenced to death, and strongly opposed the emperor's practice of killing people when he was angry. The Tang family listened to his advice. These people were pardoned from their death penalty.

3. In the third year of Zhenguan (628), Emperor Taizong of the Tang Dynasty issued an edict to waive rent and taxes for two years in Guanzhong and one year in Guandong. However, it didn't take long for him to change his mind. After Wei Wei found out, he criticized him for not keeping his word. Emperor Taizong humbly accepted Wei Wei's criticism.

4. In the fifth year of Zhenguan (630), Emperor Taizong of the Tang Dynasty believed in the slander and killed Dali Cheng Zhang Yungu. Afterwards, Fang Xuanling clarified the facts. Emperor Taizong of the Tang Dynasty regretted it very much, and then issued an edict saying: : "From today on, all those sentenced to death, even if they are executed by execution, must be reviewed three times before being executed."

5. In the sixth year of Zhenguan (631), Emperor Taizong of the Tang Dynasty wanted to go to Mount Tai to enshrine Zen. Wei Wei He repeatedly persuaded Taizong: "Now the people's lives are not very prosperous, the warehouses are not yet full, and the national strength is still relatively weak. It is very inappropriate for you to offer sacrifices to heaven and earth at this time, thinking that the emperor's achievements have been achieved." Tang Taizong immediately gave up. Got the idea of ??Feng Chan.