"Height determines vision" is almost a truth. Because people's understanding is often difficult to go beyond their own historical conditions and interests. For example, our ancestors could not have foreseen modern technology, nor did they expect to see the "emperor" without kneeling. However, as the soul of all things, human beings are not "living for a long time" after all. Some people have extraordinary judgment and foresight, which was confirmed by later social practice.
"Angle changes attitude" is also a truth. Because for the same thing, people will come to different conclusions from different angles of observation, and the conclusion is even the opposite because of the interest. Although the truth is well known, it will be very difficult to change it. If we must change, we must strive to jump out of the interests of individuals and a small group, and "worry about the world first, and enjoy the world later". Only in this way can we "make the world public" and "people are not only close to their relatives, but also only sons and sons, so that they can get old, be strong and useful, be young and have their own strengths, be widowed and lonely." "Book of Rites" Of course, this is a beautiful and unattainable wish of China people for thousands of years.
"Grasp life by scale" is a famous saying. In the modern life where people's knowledge level is generally improved and information dissemination is unimpeded, people can be clear about good and evil, beauty and ugliness, right and wrong, merits and demerits, and operational norms. The problem is how to grasp the best scale among many things, which is worth people's lifelong exploration. For example, it is obviously against the host's original intention to treat guests, and it is also not the guest's wish to make them drunk and then derive some misfortune.