As a tool, the main function of logical constructs is to influence our decisions, which can determine our practical behavior. These practices are real and objective material movements that satisfy our needs and bring us happiness.

2. Logical Constructs are Simple and Steady

Logical constructs as consciousness are not real objective concrete things, but compared with real things, they have three advantages: simple, useful, and stable.

First, simple. Ancient events can be described in words, and the description is the simulation of ancient events with logical construct. How far is ancient times up to now? Between jokes. A war kills millions and consumes millions of resources, but language takes little effort.

Objective and concrete things are infinitely complex, but man-made things are very simple at the beginning. As time goes by, slowly processing, they will become complex. Simplicity is one of the standards of truth, also known as Occam's razor, which shows how important simplicity is. Logical constructs are all fake, but their simplicity is an advantage.

Second, useful. Logical constructs are easy to use because it is simple. People are stupid and lazy, they always like to use simple things. The development of logical constructs has become the main means of the development of human civilization. Logical constructs are the basis of all human civilization and the most orderly content of human culture.

Xun Zi, a famous ancient Chinese thinker said, "Obeying and praising the heaven rules is not as good as creating heaven rules and using them." Laws are the heaven rules made by human. No matter whether they are real heaven rules or not, as long as people can use them and bring benefits, they are the best and most important. The heaven is objective, obeying the heaven rules is not important, whether the knowledge are objective is not important. Xun Zi said, "The heaven is able to create things, but it cannot distinguish things. The ground can carry people, but it cannot govern people." The heaven cannot distinguish things, we must use artificial logical constructs to understand things. The ground cannot govern people, we must rely on man-made tools.

Third, stable. It is not difficult for a person to do a good deed, but it is difficult to do good deeds all his life. It would be rash to call John a good man if you found him doing a good deed. We always take permanent things as real. Concrete things are always changing, while logical constructs can remain unchanged for a long time. Everyone will grow old, but the fairy will not grow old, the Monkey King can live forever. The story of Journey to the West can be told generation after generation. The speed of the car changes, the acceleration changes, but the relationship between the force and acceleration never changes. The truth is eternal and invariable, they are correct all the world. Things remain essentially the same despite all apparent changes. So the truth is useful.

Stable things are simple compared with mutable things. Logical constructs are more stab