1, a person can't judge a book by its cover, that is to say, you can't judge a book by its cover.
Then from another angle, that is to say, judging a person depends on his heart, self-restraint and behavior besides his appearance and speech. That is what people often say, we should not only listen to what he says, but also see what he does and how to do it. According to Zhouyi, one yin and one yang are called Tao. If we call exterior yang and interior yin both exterior yang, then only by combining exterior yang and interior yin can we truly know and understand this person accurately, comprehensively and completely. In other words, the statement that a person can't judge a book by its appearance conforms to the Yin-Yang theory in Zhouyi, so it is correct.
2. The realistic source of this sentence.
In real life, many people often come to the conclusion that people can't judge a book by its cover. I feel that person is very familiar, but I didn't expect it; I didn't expect a man like him to marry such a beautiful wife, so I sighed, what a gold mine! So, why is there such a big contrast between our judgments? In fact, we can find the answer from the previous analysis. Because everything has two sides, yin and yang. Although they are opposites, they are unified and inseparable. When we observe people and things, if we only see the negative side or the positive side, we will naturally be prone to deviation, contrast and even complete mistakes. In other words, the way we observe things is limited to seeing mountains and water.
3. People can judge people by their appearances, but only if they have the ability to see the essence through appearances.
Although we say that judging a person needs a combination of external and internal richness, in practice, the external is easy for us to capture, but the internal is difficult to master. So, what should we do? In fact, the theory of Yin and Yang in Zhouyi tells us that Yin and Yang are mutually rooted, interdependent and interconnected, and so on. In other words, Yin can reflect both Yang and Yin, with Yang in Yin and Yin in Yang. It can be seen that as long as we have the ability to see the essence from the outside to the inside, then people can judge people by their appearances, and you are the one who judges people by their appearances. In fact, all the predictions in Zhouyi are based on appearances, such as reading faces, palms, houses, divination, reading life and so on. In other words, people can judge people by their appearance, but judging people by their appearance should reach the realm of seeing mountains rather than mountains and water.
4. When looking at people, you need to look at them this way: when looking at the appearance, you should see the good and the bad, and the bad and the good; When you look inside, you should also see the good and the bad, and the good in the bad can't be generalized.
The theory of Yin and Yang in Zhouyi tells us that there is Yang in Yin and Yin in Yang. In other words, everything can be divided into yin and yang, and yin can continue to be divided into yin and yang. Applying this theory to our appearance, if we see the good side on the surface, but ignore the bad side hidden inside, our observation will be wrong, compared or wrong; Similarly, if we see the bad side of our hearts, but ignore the hidden good side, our observation will be wrong, compared or wrong. If so, we will still sigh that all that glitters is not gold. From this point of view, it is feasible for us to look at the outside or the inside. Whether we can accurately judge people and things depends on whether we apply the theory of yin and yang splitting into two. This is to see the mountains, not the mountains, nor the water.