There is only one gentleman in the school, named Zhang Jinglin, and the classes in the school are taught by one man.

People think that Mister is powerful and knows everything. But Wang Shuai has always had questions, all said that the business has specialized, a person's energy is limited, so Mr. Zhang can not be omniscient?

Wang Shuai and others have always been different, when he looked at the problem, he liked to reflect, and later listened to Mr. Zhang's lecture to know that this is called a dialectical view of the problem.

Yan Yixing sometimes very confused, because Wang Shuai often refutes Mr. Zhang Jinglin's point of view, but will still be free to come and listen to Mr. Zhang's class...

In the afternoon, Wang Shuai took Yan Yixing to celebrate the class, not for anything else, just for him to listen to the class in the yard.

On weekdays, squatting on the wall is too far away from the classroom, after all, it is a little hard to hear. Originally, Zhang Jinglin liked to close the doors and Windows tightly when lecturing, which was afraid that the movement outside would affect the students and cause everyone to be distracted.

But later he found that after Wang Shuai eavesdropped, he would leave a window.

Now, just call Wang Shuai to the yard.

Many children's parents are in this troubled world, sending their children to school is not to give their children a long knowledge, but sent here to facilitate their children's marriage later, especially girls who have been to school can usually make a good family.

In this day and age, three-digit arithmetic is good enough.

Who cares if you have no culture when everyone is busy trying to survive and food is running out?

Therefore, most parents send their children to school and do not have a long-term plan. In this small market town, there are rich and poor people, and there will be comparisons.

Yan Yixing looked at Wang Shuai went to the grocery store to buy a cigarette with a filter, Lao Wang also said he was proud of the smoke absolutely no aniseed, safe.

A 20, the thing is rare is valuable.

Yan Yixing doubts asked: "Brother, you buy cigarettes for what?"

"Your husband let me into the courtyard to listen to the class, I don't pay the tuition, I must show it," Wang Shuai said with a smile. "I know that Mr. Zhang likes to smoke."

In Wang Shuai's view, others express goodwill, they have to return.

The two people went to the backyard of the school while everyone was having lunch, Mr. Zhang was eating fried cabbage, Wang Shuai took the initiative to smile and give Mr. Zhang a cigarette.

Zhang Jinglin did not refuse, but let Yan Yixing stay away: "You are long body smell smoke is not good."

Wang Shuai thanked: "Thank you Sir For letting me into the yard to listen to the lecture."

"Huh," Zhang Jinglin took his own fire cooking match to light the smoke, and then vomited a mouthful of smoke: "Now like you love to listen to the students are not many, want to listen to it, you will stand at the door, but not allowed to enter the classroom."

"All right," replied Wang Shuai, "Sir, I have a question."

"You say," Zhang Jinglin is probably rare to smoke a cigarette, and now Wang Shuai asks what he doesn't mind.

"Sir, you said that before the disaster, human beings had a lot of technology, and we human beings have not died, why do we not see those technologies re-emerge now?"

Zhang Jinglin took a look at Wang Shuai: "During that period of time after the disaster, human beings themselves did not accurately calculate how many years we had survived, and it was good to survive every day.

"But we must still have some information? Won't learning soon restore civilization?" Wang Shuai was curious.

"Out of generation," Zhang Jinglin said regretfully, "Let me ask you, I now give you a set of aircraft manufacturing information, can you build a plane?"

"I didn't learn it, and although having the materials can save a lot of time, I started from scratch," Wang said.

"Yes, now everyone is learning from zero," Zhang Elf looked at his only half of the smoke, feeling a little distressed, like hesitating to smoke or not to smoke.

He wanted to leave half a later smoke, but in front of Wang Shuai and Yan Yixing do so will not be a little lost face...

Wang Shuai still wondered: "Is it true that in those years, no one overcame difficulties and hardships and continued to pursue learning?"

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"No, they all starved to death," said Zhang Jinglin.

"Is all that knowledge now dated?" Wang Shuai was not willing.

Zhang Jinglin looked at Wang Shuai seriously this time and said meaningfully: "They are in the hands of a few people."

...

"All right," Zhang Jinglin stood up and said, "don't ask about it. It's time for class."

Wang Shuai pestered Zhang Jinglin with one last question: "Sir, when was the wall of our refuge barrier built and why did we build this wall?"

"After the disaster, wild animals ran rampant, and it is said that there was a worm tide a long time ago, and humans were forced to build high walls to keep out the danger," Zhang explained.

"But most of the wild animals will not actively attack humans even if they have evolved," Wang Shuai wondered, monkeys are still vegetarian, sparrows still love to eat grain, they do not take the initiative to eat people.

Refuge Barrier 113 is now in the 'circle' of human existence, and most of the more ferocious beasts are actually excluded from the 'circle'.

The higher the serial number, the more dangerous the refuge barrier, such as the legendary refuge barrier No. 178, which killed and injured many people every year because of the expulsion of wild animals.

And No. 113 refuge barrier, in fact, is already considered 'inland'.

There are still many dangers, such as wolves, but they are not insurmountable. If so, why does such a large human settlement still have high walls?

Zhang Jinglin laughed: "As long as there is danger in the wild, then the refugees can only rely on the refuge barrier to live, at this time the refuge barrier has a large number of cheap labor." Do you think that the corporations behind the refuge walls don't have the power to wipe out the dangers in the wild? Humans have more heat weapons than you think, but why do they have to clean them up? They don't threaten them."

When Wang Shuai heard here, he was already deep in thought, although he was young and precocious, there were some things he had not touched, he was doomed to not understand, which was also the reason for his desire for knowledge.

"They will not tear down the wall," Zhang continued. "How can the vested interests in the wall abandon such a natural class barrier?"

With that, Zhang Jinglin went to change his clothes, and Wang Shuai was curious: "Sir, why did you change your clothes? Just now that one was not dirty."

Zhang Jinglin straightened his neckline and said: "Just now that body was stained with smoke, the students smelled bad."

Yan Yixing was awestruck, and Wang Shuai was suddenly a little unhappy: "Then I smell nothing, Sir, just now you did not let me stay away."

Zhang Jinglin thought for a long time: "Go away."

At this time, Wang Shuai suddenly heard the palace in his mind voice again: "Task: desire for knowledge is never a bad thing, but learned, to teach people."

Wang Shuai froze for a moment, he simply did not understand the task is to let him do.

...

In the afternoon class, the students all felt very fresh. Outside the door stood Wang Shuai, who was several years older than them, so that many students turned to look at him.

After tapping the blackboard several times to quell the students' curiosity, Zhang said, "We will have a survival class this afternoon."

That's what's unique about the academy in this day and age, it's not just about arts and science, it's about survival.

However, the class has been a headache for Zhang Jinglin, because he is really not good at surviving in the wild.

Therefore, most of the time, it can only be read from the previously preserved data.

Zhang Jinglin looked at the students in the classroom: "Listen attentively, do not feel that the danger is far away from you, now you have parents to protect you, and when you are adults, you must learn to protect yourself." Today we talk about what to do if you meet wolves in the wild."

The students in the audience actually like to listen to the survival class, other courses are too boring for their age, survival class sounds interesting.

At this time, the classroom was silent, and Zhang Jinglin looked at Wang Shuai, who was standing against the door listening to the lecture: "Come on, you tell me, what should you do if you encounter wolves in the wild?"

Wang Shuai thought for a moment and said: "We should try to choose a hillside with trees all around, because it is better to choose a cemetery."

Zhang Jinglin: "??"