Sima Yi's portrait of the wolf is mostly false, and it comes from the attachment of later generations. The credibility is not high. In many historical records, there are cases in which visions are finally added to some people, but most of them are hindsight, just to increase the appeal of the article, and there is not much reference value.

The image of Wolf Gu was a neutral word at first, which was first seen in historical records. It described that a person still had worries when doing great things, but it gradually evolved into a derogatory term at the end of the Eastern Han Dynasty. Many scholars used this word to call people names, just like calling people heartless, not that person really had a wolf heart.

The performance of caring for the wolf is that a person's head can rotate 18 degrees without moving his shoulders. In real life, such people do exist, but they are very few, and most people can't do this. This situation is even less likely to fall on Sima Yi's head.

It is said that Sima Yi has the image of a wolf. This matter was mentioned in the Book of Jin, but the Book of Jin was written by people in the Tang Dynasty. Since hundreds of years have passed since the incident, the credibility of this content is even lower, and it is probably false.

In ancient China, when a new dynasty was established, it was necessary to compile the history of the old dynasty. However, after the demise of the Jin Dynasty, China entered the darkest period of division, so no country was in the mood to write history books. The Sui Dynasty died before it started, so it was only left to the people of the Tang Dynasty.

Future generations usually write history books with political inclination, and use historical stories to express the political needs of contemporary rulers, so many contents are divorced from the actual situation, and the author will delete them according to the needs of literature, so many historical stories look very mysterious, and many famous aphorisms come from the author's mouth and have nothing to do with the parties.

Sima Yi is not a loyal minister, and his family also managed to seize the throne of Cao Wei, which is a big violation in the eyes of the rulers, so it is necessary to smear him, and his image must never be publicized too positively. Therefore, when compiling history, historians will also make some modifications to his image to make him conform to the image of the usurper. It may be in this case that the wolf is added to him to highlight his villain characteristics.

In fact, there is such a situation in modern times. We can see in many film and television works that the negative characters are relatively obscene, while the positive characters are very tall. It is through this intuitive image that people's position is reflected. The same is true of the ancients. It is said in the records that Sima Yi has a wolf's eye, so that everyone will consciously think that he wants to rebel, which matches his character characteristics, but it is estimated that he can do it himself.