Li Zhi, don't be a coward

Chapter 448 Mingde, Xingbang

Accidentally took in two princesses, but unexpectedly picked up two treasures, one for each of them, collectively called babies.

So Li Qinzai became serious. He wanted to give lessons to Princess Xuancheng seriously and teach him what he had learned in his previous life.

Of course, Li Qinzai has forgotten a lot of what he learned in his previous life. He can only pass on the parts he remembers to his disciples. As for the forgotten parts, later generations will fill them in.

The world is so big, there are so many talented people throughout the ages, after Li Qinzai there must be someone who comes later, what Li Qinzai has to do is to form all the knowledge into a fixed system, no matter how much is left out, as long as there is a system, it will be for future generations A window opened.

In the quiet courtyard, Li Qinzai was sitting with Princess Xuancheng, teaching her how to solve the quadratic equation.

Princess Yiyang tied two heavy sandbags to her legs and squatted not far from them.

It didn't take long for Xuancheng to understand. Li Qinzai was a little surprised, so he asked her a few questions, and Xuancheng solved them with a few strokes, and the answers were completely correct.

"Yes, you are very talented." Li Qinzai praised for the first time.

He had done too much mocking of the students, and when he suddenly praised the students, Li Qinzai was not used to it, his tone was very blunt, as if someone had put a knife on his neck and forced him to praise others.

The lack of sincerity in boasting, Xuancheng didn't seem to show much joy, Li Qinzai had to emphasize his tone: "You are the most talented of all my students, don't waste your talent."

Only then did Xuancheng laugh. With an introverted personality, she laughed like a orchid waiting for the spring breeze, and the branches and leaves stretched out in the wind.

"Sir, I don't understand. What's the use of learning mathematics well?" Xuancheng said in confusion, "It's not a scripture of sages and sages, and most of the scholars in the world don't know it. If I can learn it well, I can use it as a what?"

Before Li Qinzai opened his mouth, Yi Yang, who was squatting not far away, suddenly reprimanded: "Mr. If you want me to learn from you, you should learn. Mr. is knowledgeable. There are so many dignitaries in Chang'an City who send their children to Mr. Zhang. If Mr.'s knowledge is useless, they Will you flock to it?"

After Xuancheng was reprimanded by Yiyang, he lowered his head and dared not speak.

Li Qinzai smiled and said: "It's okay, the truth must be explained clearly, otherwise you don't know the goal of learning when you study, and you will give up because of confusion."

"The scriptures of sages and sages from ancient times are in Mingde. Mathematics and physics can prosper. This is the meaning of my teaching you these two subjects."

Xuancheng's eyes widened: "These numbers and symbols make up the topic, can it rejuvenate the country?"

"It can, and it is the most important way to rejuvenate the country. If you know the principles of everything in the world, you will know how to change it and use it to benefit the world, and even a city and a country."

"When the Great Tang conquered the enemy and attacked the city, how far apart can the trebuchet accurately hit the top of the city? What kind of arc will it draw in the air? It takes a few weeks for the winch to perfectly throw the boulder into the enemy army..."

"Limestone is obviously an ore that can be seen everywhere, but why after a few days of burning in the kiln, it turned into solid cement..."

"A craftsman builds a house, and the stone bricks can't be thrown on the beams that are ten feet high even if they try their best. But if they carry the bricks and turn them around twice before throwing them, they can be thrown up easily. The principle of centrifugal force can save a lot of labor. physical strength and time..."

Li Qinzai looked at her with a smile, and said: "What you see are all phenomena, but our knowledge is to study its principles through this phenomenon."

"If 1 people in Datang understand the principles of everything, then you will find that Datang gradually has machines, lathes, vehicles, and invincible weapons to replace manpower."

"This is the significance of learning this knowledge. It uses principles that people have never discovered to skillfully liberate human and material resources, and let the manufactured machines replace people's labor and farming, so that people can live more leisurely, or engage in more Important work."

"A country often prospers in this way, and this prosperity can continue for thousands of years. Even if it encounters war and death, it can quickly rebuild on the ruins and restore the previous civilization."

Xuancheng was fascinated by what he heard, resting his chin on his hands, staring at Li Qinzai obsessively.

Even Yi Yang, who was squatting on a horse, was attracted. His half-squatting legs seemed to feel no pain, and his mind was full of the prosperous scene that Li Qinzai said.

"Datang... will there be such a day?" Xuancheng said with longing.

Li Qinzai sighed: "There will be, but I may not be able to see it in my lifetime, and you may not be able to see it either. The scene I just mentioned requires the efforts and inheritance of several generations, as well as the right time, place and people."

"More importantly, my knowledge needs to be carried forward and passed on from generation to generation to make it more perfect, more progressive, and to understand the principles of all things deeper. If it is a kindling, it needs to be passed on from generation to generation, and it will last for thousands of years. , our world will eventually be different.”

Yi Yang couldn't help but said: "But sir, why do disciples think that master doesn't pay much attention to teaching disciples? You... often miss classes."

Li Qinzai said without hesitation, "Because Mr. is lazy."

The two princesses were dumbfounded. Can the reason of laziness be so straightforward?
"Mr. is not a sage. Mr. is only responsible for teaching students knowledge. As long as I do not teach the wrong knowledge, even if I have a problem, you still have to respect me and salute when you see me. Do you understand?"

The two princesses looked puzzled, and they always felt that there was something wrong with this explanation, but on the surface, it did make some sense.

Xuancheng got up and bowed respectfully to Li Qinzai: "Sir, the disciple will work hard to learn well, and pass on the master's knowledge from generation to generation."

Yiyang knew that he was not talented enough, so he didn't know how to express his position for a while, so Ai Ai said after a long while: "Disciple...will protect Mr. well."

…………

After autumn, it has become a bit chilly, and the leaves in the yard have turned yellow and fallen.

Taking advantage of the cold weather, Li Qinzai stewed an old hen for the family of three to nourish and gain some fat for the winter.

Li Qinzai's attitude towards life is obviously much more serious than his career, and this is a person who lives a down-to-earth life.

The monarchs and ministers in the court are already awesome enough. With him or without him, it will not affect Datang's rampant domineering in the world. Li Qinzai is fine lying under a big tree to enjoy the shade. If he does not add chaos to the process of Datang's sweeping all directions, he will be considered as a contribution to society. .

The chicken was stewed deliciously. After two hours of cooking, the chicken soup was thickened into juice.

The family of three ate very happily, and Qiao'er enjoyed two chicken legs to himself. After eating, he wiped his mouth, saluted the two in a proper manner, and turned around to run out to play.

"Come back! Take out the slingshot and confiscate it." Li Qinzai said.

(End of this chapter)