"That's right, apply what you've learned!"

Before Heifu started to teach the ink master Cheng Shang, Zhang Cang laughed out loud, and interjected with a mouthful of wine:

"Heifu, you're still a little late, this lesson, the master has taught me more than twenty years ago."

He shook his head and said, "The master sat in Lanling that day, and said to everyone, knowing but not doing, although he will be sleepy. This means that knowledge is not the goal, knowledge is for use, knowledge is not used, it cannot be turned into action, and no matter how rich knowledge is, it is useless......"

Heifu slapped the case a few times and said: "That's right, in this regard, I see and even share Xunzi's knowledge, and the really useful knowledge is not only for you to use yourself, but also for others to use!" Not only to let a few people use it, but also to make it available to everyone in the world! ”

"So that everyone in the world can use it?"

Cheng Shang was stunned, although their Mo family was famous for their ingenuity, they only regarded it as a means, not a goal, so they didn't think about it.

Heifu took Zhang Cang as an example: "Zhang Cang finished the first volume of "Nine Chapters of Arithmetic" last year, and in the first six volumes, the chapter "Fang Tian" deals with the accurate measurement of acres of fields, the chapter "Corn" deals with the proportion conversion of grains and grains, "Decay" is related to the distribution of Yulu, "Shaoguang" and "Shanggong" are the calculation of civil engineering quantities, and "Equal Loss" involves the apportionment of taxes ......"

"By the way, there is also "Abacus", which specifically talks about the usage and skills of the abacus. All of the above is extremely practical, and there are simple illustrations, could it be that he wrote it for himself? Was it written to his son's disciples? ”

"That's not right!"

Zhang Cang was also drunk, and said loudly: "I wrote it for the world!" The six arts of the gentleman, the number of books and books of etiquette, however, I want to let the world's corporals and industrialists and industrialists all be able to use mathematics! ”

This "Nine Chapters of Arithmetic" is Zhang Cang's best fulfillment of Xun Qing's "unity of learning and action".

The fat man understands very well that if he is addicted to esoteric mathematical problems and can't extricate himself, then this book is a niche self-entertainment after all, and it can't benefit the public, and Ze is the world.

Therefore, Zhang Cang wrote the practical six volumes first, and the more theoretical "Insufficient Profit", "Pythagorean" and "Equation" were placed behind. Because for most people, the first six volumes are enough, and if someone reads the first half of the book and is not satisfied, they will naturally want to read the last three volumes, so as to embark on the road of delving into mathematics......

"If I hide these mathematical knowledge that I understand and only give it to my son and disciples, sooner or later it will be lost."

Zhang Cangjiu seemed to wake up and became serious, he agreed with Heifu's statement: "Ziyin, if a knowledge is so advanced that no one uses it, it will not be long before it is extinct." ”

The substructure determines the superstructure, and so does learning.

No matter how good a theory is, it must be useful in the field of application in order to carry it forward, and promote the development of theory with its huge audience base and practical interests.

Moreover, the process technology must be studied by a group of people together, in order to make more and more progress, a person behind closed doors, it is not good to study backward skills.

There is a lack of technical books in ancient times, and later generations believe that it is the literati and artists who do not pay attention to technology, but in fact, it may not be, it may also be that the craftsmen hid their unique skills and did not let others know, and finally passed them on.

This problem was not only common in China, but also in Japan and the West, and it was not until the patent system developed and the disclosure of technology was rewarded that craftsmen gradually offered their unique skills.

And really to break the craftsman's complacency or rely on the development of science, the craftsman groped for decades of experience, not as good as the results of scientific deduction, which made the ancient craftsmen completely out of the hole cards.

Heifu understands that the patent system is of course impossible, but the Qin Dynasty can encourage military exploits, can encourage Litian, and can also encourage some craftsmen to innovate and invent!

If the ink artists who really grasped "science" in this era participated in helping the government to train craftsmen, maybe the process of leading the craft with science could be advanced......

After Heifu and Zhang Cangyi talked, Cheng Shang finally came to his senses.

"Mozi thinks that craftsmen always need a scale as a measure to build, and skilled craftsmen can completely portray without error, although those who are unfortunate cannot be completely correct, but if they act according to the scale, the effect is better than relying on their own personal ability to explore."

He raised his head and said, "County Shou, I understand, what you want the Mo family to do, it's that ruler!" Use the prestige and ability of the Mo family to be the yardstick of the world's craftsmen! ”

Heifu was pleased: "Yes! Would you like to help me do this? ”

Cheng Shang bowed: "I'll go back to Xianyang and persuade Qin Mo to agree!" ”

"No, it's not asking them to accept it."

Zhang Cang corrected on the side: "I'll tell you the truth, when I was in Linzi, because of the Confucianism with the past and the present, Prime Minister Li Cheng said, Your Majesty almost had the idea of burning a hundred schools of thought, and the ink man was also among them!" If it weren't for Heifu's efforts to stop it, I'm afraid the fire would have burned to Xianyang. ”

Cheng Shang has also heard about this matter, and when he hears it at this moment, he is still afraid.

Heifu also answered: "That's right, Prime Minister Li Cheng personally said, the people are in charge of the family, the peasants and workers, and the scholars study the laws and regulations to dispel the ban, in his opinion, only these three things are useful, and the rest are useless books, all of which can be burned!" ”

"If the Mo family doesn't want to become a peerless school, they must take advantage of His Majesty's unchanged mind, take over this matter, and take the lead in opening an engineering school in Xianyang. If you want to survive in Great Qin, you must prove that you are a useful learner! ”

After that, Heifu bowed his hand to Cheng Shang: "This is also the only place where my Heifu, out of respect for Mozi and admiration for Mozi, can help the Mo family!" ”

……

"Yesterday, you asked the ink masters to use the knowledge in their ink scripture for industrial skills, which is excellent, but you later said that you want me to apply Xun Qingtian's knowledge to farming, but I don't quite understand it......"

The next day, after drinking too much wine last night, Zhang Cang, who was shouting that he wanted to "sleep on his feet" with Heifu, woke up and found that Heifu was not sleeping with him at all.

He rubbed his aching temples and came to the courtyard, where he was served by the maid and washed, and he still remembered yesterday's argument.

Heifu only slept in the next room, and when he heard Zhang Cang's words, he suddenly shook his spirits, and wanted to continue to knock on the small blackboard to give Zhang Cang a lecture, but found that it actually said "United Workers and Peasants" in four simplified Chinese characters!

I don't know what I was drunk yesterday and blew it, I suddenly broke out in a cold sweat, and I reached out to wipe it off quickly, and then I coughed a few times and said:

"Although you Zhang Cang is erudite, after all, you are from a wealthy family, and you can't compare with me, the son of a Qianshou who has been digging in the field since childhood, so I will continue to talk to you about farming!"

Heifu first asked Zhang Cang three simple questions.

"What are the grains?"

"What about the five dishes?"

"What are the six animals?"

Zhang Cang felt insulted, and jumped like thunder: "Are you really industrious and indistinguishable from me?" ”

Heifu raised his eyes and looked at Lao Zhang's weight of two hundred catties, not to mention anything else, it is true that the four bodies are not diligent.

But after all, Zhang Cang has a lot of knowledge, including rice, millet, millet, wheat, and soybean. Five vegetables sunflower, leeks, shallots (xiè), green onions, weeds. The six animals are pigs, cows, sheep, horses, chickens, and dogs...... He can say it perfectly. Even with which county produces what, the advantages and disadvantages of grains, the habits of six animals, and the key points of breeding, you can also say seven, seven, eight, eight, eight, after all, in addition to being a fat technical nerd, he is also a big foodie.

After Zhang Cang finished chattering, Heifu slapped his hands and smiled: "That's a good point, but I'll ask you one more question." ”

"Say!" Zhang Cang's short neck was raised, with a posture of not refusing to come.

But Heifu's words once again made Zhang Cang stunned.

"Do you think that the world will grow and raise these grains, vegetables and animals from the beginning?"

……

PS: I'm busy going out and there's no more free yards.,This chapter is a little short.,There's no need to wait at night.。