How did the classical Chinese master Naoko persuade the Emperor?

In the matter of the princess' coming out'; The eldest grandson said to Li Shimin, "My concubine and your majesty are married, and they are very polite. Every word must be equal in color first, and you dare not underestimate your majesty. " Alienation from people and ministers, talking loudly can be like this. "I have to flatter you when I marry you, and I have to look at your face when I speak, so as not to offend your majesty; What's more, this gap, Wei Zhi still dare to be so outspoken. Empress Grandson praised Wei Zhi's outspoken advice from a positive contrast.

When Li Shimin said angrily, "You're going to kill this Tian She Weng" and you had a chance to kill this hillbilly Wei Zhi; The eldest grandson of the queen, dressed in full dress, congratulated Li Shimin in court: "I heard that the master is honest and clean; Today, due to your understanding, Wei dare not congratulate me! " Praise Wei Zhi's loyalty and frankness by praising the emperor's consciousness, so as to remind Li Shimin: "Loyal ministers should not be killed. Killing him is killing yourself!