According to the examination questions in Baidu question bank, "Taking copper as a mirror can convince people directly" is the evaluation of Minister () by Emperor Taizong and Li Shimin. A. Sun Chang Wuji B. Wei Zhi C. Wei Chijingde D. Qin Qiong. The correct answer is: B. Wei Zhi.
Wei Zhi (580 ~643) was born in Xiaquyang, Julu County. Prime Minister of the Tang Dynasty, an outstanding politician, thinker, writer and historian. In his early years, he followed Gong Wei and Shimi and participated in the Wagang Uprising, which should not be reused. In the first year of Wude (6 18), he surrendered to the Tang Dynasty, persuaded British public servants, washed the horses for the prince, assisted Prince Yin Li, and made suggestions to pacify Liu Heita and Shandong. In the first year of Zhenguan (627), Zuo Cheng, an admonition officer and proofreader, was granted to appease Hebei. Moved to the prison, participated in the previous dynasty, and revised ancient books. Moved to Fengzhong and Julu County to take charge of provincial affairs. Dr. Qian Guanglu, Prince Taishi, conferred the title of Zheng Guogong. Speak freely, preach the kingly way, assist Emperor Taizong to create "the rule of Zhenguan", become a "generation of famous soldiers", and rank fourth among the twenty-four heroes in Lingyange.