There is an old saying in China that "a loyal minister is not the second master, and a good woman does not marry two husbands". This sentence sounds hard to argue. However, there are too many old sayings in China, and the famous saying opposite to the above sentence is that "a good bird chooses a wood to live in, and a good minister chooses its master to walk". The two are tit for tat, giving people a sense of right and wrong. Who can tell right from wrong?

Wei Zhi was born in a scholarly family in the second year of Emperor Jing of the Northern Zhou Dynasty. His father is well-read and versatile. He was a local official in the Sui Dynasty, but he died very early. Therefore, Wei Zhi's family life was very poor when he was young. However, Wei Zhi was ambitious and always wanted to make a career, so he studied hard and laid a good foundation in knowledge and political talent. At that time, Emperor Yang Di was dissolute, and heroes all over the world rose up against Sui.

Wei Zhi was the first to join Yuanbao Rebel, but he felt that he couldn't see the general trend of the world clearly and was at a loss, so he became a monk to avoid the temporary chaos. Later, another rebel leader, Shi Mi, appreciated him very much and sent someone to invite him to take charge of military affairs documents. At this time, Wei Zhi was thirty-eight years old.

In Shi Biao's uprising army, Wei Zhi's position was very low and he had no right to speak. At that time, the Wagang Army in Shimei was huge, occupying the most important granaries in the Sui Dynasty-Luokoucang, Luohuicang and Liyang granaries in Henan, and opening warehouses to help the hungry, which made the uprising army develop to its peak. ?

However, the general of the Sui Dynasty, Wang, hid in Luoyang and fought to the death with the rebels. Wei Zhi clearly saw many shortcomings of the insurgents, and took the initiative to protest, saying, "Although the insurgents have won great victories, there are also great casualties. In the army, funds are tight, reserves are limited and rewards and punishments are uneven. Not suitable for recklessly with Sui Jun.

At present, the plan lies in the deep ditch and high base, so that the enemy can run out of food, and when the enemy withdraws and pursues again, it will win a great victory. "But Shi Biao still decided to make a quick victory, and the army camped without setting up a base, and was attacked by the king with fire and was defeated. After the war, the wagang army was wiped out.

Mencius once said, "Killing a husband is unheard of, and killing a king is unheard of." It means loyal to the country but not to the monarch, loyal to the people but not to the people. There is also a philosophical view implied here, that is, everything should be treated according to people and time, and nothing can be treated according to some established law.