For daily training, just like Lin Feng's experience in his previous life, if the training lasts for more than three days, you can persist to the end in this week; if you persist to the end in this month, you can persist to the end in this month; if you persist to the end for three months, it has become a habit, and it is still uncomfortable to not train. During the ten days when Lin Feng studied hard and taught his brothers a lesson, the early training of fourteen of them overcame the initial physical fatigue stage and psychological rejection stage, everything became smooth. Even Xiao Duan Rui could persist to do 100 push-ups at a time, but the guards had done 200, and even Chen Fei and the others had done 150.

Of course, Lin Feng was not all idle, and mainly did two major things. One was to teach Li Yu and Li Congqian the second lesson, and the other was to successfully launch his supermarket plan.

During this period, what made Li Yu the most strange was that since Li Jing heard Lin Feng's theory of change that night, he did not punish Lin Feng, nor did he reward him, and he never mentioned this matter again. He only asked about Lin Feng's class for them during an occasional chat. After listening to him lightly, he did not say anything. He only said at the end when Li Yu said goodbye: "Continue to study hard."

Li Yu was an obedient child. The next day, he took Li Congqian to Lin Feng's guest room. In addition to not staying here at night, Lin Feng would study in the guest room or write and write strokes after training every morning.

After hearing the purpose of Li Yu and his brothers, Lin Feng smiled and was dizzy when he was reading the book. Let's go.

While asking about Li Congqian's studies easily, Lin Feng led the two brothers to the garden behind. Halfway through, Lin Feng grabbed a branch that was protruding from the road, and broke it gently, and then stroked the leaves on it along the direction of the branches, turning it into a bare branch. Li Congqian followed suit, and also broke a branch and held it in his hand to play.

After a while, the three of them walked to the pavilion where they usually recite poems. Lin Feng raised the branch in his hand and asked the two brothers: "Are the branches straight or curved?"

"Of course it's straight." The two brothers said in unison.

"Is that so? Now?" Lin Feng stretched the branches in his hand into the water, and the branches immediately seemed to be bent.

"Hey, why has it become bent?" Li Congqian curiously extended the branches in his hand into the water, and found that the same thing had happened.

Lin Feng pulled out the branches, but the branches were still straight.

"What does this mean? Who is straight and who is betrayed? Who is wrong with whom? It is not what we simply imagine. Not to mention what you hear from others, what you see may not even be true." Lin Feng still habitually leads to what he wants to say from the actual phenomena in life.

Seeing the two brothers start to ponder habitually again, Lin Feng drew two identical lines under the ground with branches and asked: "Are these two lines the same long?"

"Of course it's the same long!" Li Congqian blurted out again.

Lin Feng used the branches to draw two opposite brackets on both sides of the two lines. The upper set of brackets is outward and the lower set is inward, asking: "What about now?"

"Hey, it obviously looks like the one on it is long." This time, Li Yu also felt strange. Of course, this is a very interesting visual test question in later generations. Through external auxiliary means, people can create illusions in their vision.

"If you see a line segment that passes through brackets first, would you think the line above is long? So, in this case, who is longer and short is true or false. If you don't measure it on the spot, just based on visual measurements and just based on eyes, the results you get may not be correct." Lin Feng continued to guide the Li Yu brothers' thoughts.

Lin Feng took the branches in Li Congqian's hand, gestured to fold them into the same length, and then handed one to Li Congqian again, instructed him to raise the branches, hold the two sections of the branches with both hands, and walked to a distant place, erected the branches in the same posture, and kept himself in the same straight line with the two brothers, shouting loudly: "Your Highness Zheng, look at who is longer and shorter in the two branches?"

Li Yu felt it was ridiculous. It was obviously the same length, so why did it look so different?

Lin Feng returned to the two sides, put the two branches together again, and said, "The distance determines the size and effect we see. During the chat, Mr. Lin once said that at the beginning of the founding of the former Tang Dynasty, Li Shimin was good at fighting, but was always outside, and his relationship with Li Yuan and the harem was naturally relatively distant. Li Jianmin often stayed inside, and his relationship with his father, mother, and concubines was very close. Compared with each other, Li Yuan hated Li Shimin more. In the end, his indulgence led to Li Jiancheng and Li Shimin's brothers being killed. If it were us, if one person served you every day and the other person was running for your career, who should he be close to whom?"

After saying that, Lin Feng moved his feet and led the two brothers to a small bridge, pointing to the other side of the distance and said, "Suppose we want to reach the other side, and now, the bridge is blocked by two big trees." Lin Feng threw the two branches in his hand on the small bridge deck, "The trees are very huge and cannot be moved for a while. How can we reach the other side as soon as possible?"

"I can only walk around the edge of the pond." Li Congqian ran to the small bridge, observed for a while, and turned his head to answer.

"Yes. Compared to the waste of time when moving trees with effort, we can go around from the side. Although the distance is a little longer, the final arrival time is not slow. Therefore, whoever is faster and slower will depend on the result in the end. As the saying goes, sharpening the knife does not delay the chopping of wood. Sharpening the knife may delay the cutting speed, but in the case of sharpening the tool, it will grab the front."

Lin Feng changed the subject and brought the topic to his explanation today: "Today, we talked about curves and straightness, length and shortness, far and near, fast and slowness, which is to analyze from different perspectives how to treat a thing, a person, a policy, look at things, whether policies are good or bad, and distinguish whether people are loyal or treacherous."

The key is to look at people. Lin Feng sighed in his heart. In the sixth year of Kaibao (973 AD), when Li Yu was in power in the original history, the Song Dynasty sent people to the Southern Tang Dynasty to ask for the "Jiangnan Tujing". This is such a clear sign of sending troops, but Li Yu still ordered people to copy a copy and send it. In the same year, Lin Renzhao, the southern capital, secretly told Li Yu, and advised him to take advantage of the time when Song was exhausted from the expedition to go out to Shouchun to restore the old land. Lin Renzhao even said: "On the day when the army started, please raise troops to rebel and make a name for the country to benefit the country. If it is not a clan, the family, and you know that your Majesty would not plan." He would rather bear the bad reputation and be defeated.

The destruction of the clan also requires excuse for the later lord. What a good loyal minister and general, but Li Yu was afraid, so he quickly transferred Lin from the front line. Then, Li Yu sent Li Congshan to the Song Dynasty to pay tribute, and Zhao Kuangyin set up a counter-espionage plan and pretended to accidentally lead Li Congshan to a studio. Zhao Kuangyin seemed to point at one of them casually and said, "Your General Lin Renzhao has surrendered, and I will send this image as a token first. I have even arranged the place where he lives. When Li Congshan returned, Li Yu immediately sent someone to poison Lin Renzhao. This is a typical self-destruction of the Great Wall.

And who were those who stayed by him at this time? The Song Dynasty army was going to cross the river across the coast from Jinling City. Zhang Yu, the most beloved minister of Li Yu, actually said, Your Majesty, I can guarantee that it must be fake news. I have been reading books for so many years, but I have never seen any book that records the use of floating bridges to cross the Yangtze River. The news must not be true, and even if it is true, it will definitely not be successful. Li Yu smiled and said, that's right, it's just like a child playing house. The looming crisis made these two monarchs and ministers ignore it like a child's play. Who would destroy the country if he didn't destroy it?

"Three people become tigers, and the mouths of the people make gold, and the bones are destroyed... Since ancient times, many idioms and examples have shown how easily we are guided by external things and by outsiders' opinions. For example, a minister, although his words are reasonable, they are very unpleasant, which is very likely to be disgusting; while another minister seems extremely loyal. In order to make the emperor happy for a moment, he actually treats the major affairs of the country as a joke. Those two who are loyal and treacherous should be close to and far away from them, I think the answer must be clear." Lin Feng concluded.

"The countless phenomena in reality tell us that everyone must always maintain a clear and fair heart for anything, anything, and anything. One must observe the reality and change in a matter. One must observe his words and actions for a long time; one must be patient, argue the essence and the effect of a policy. Okay, all this is the end of today's class."
Chapter completed!