How did you, a prisoner on death row, become an important weapon of the country? Yecheng Gao Weiming

When Ye Cheng went to the cafeteria to find Li Xin, Li Xin was stunned after hearing what he heard.

Teacher Dai is back, but...

"Wow!"

He burst into tears without caring about the steamed bun and vegetables in his mouth.

This cry caused everyone in the cafeteria to turn their heads.

The fat chef rushed out with a rice spoon in hand.

"Xin boy! Why are you crying? Ah, your father and mother died a long time ago, and you are mourning!"

Li Xin wiped the tears from the corners of his eyes and wanted to spit out the steamed bun in his mouth but was reluctant to do so. He swallowed it down desperately before crying and shouting.

"Teacher Dai is back, but he... but he is dying..."

boom!

The entire cafeteria was silent.

The fat chef couldn't say anything as he held the rice spoon in his hand. He could only let out a deep sigh.

"Let's go! Let's go, Wen Jing! Let's go and inform the students..."

Li Xin turned around and ran away.

He is the class monitor and has a greater responsibility than Qin Wenjing to inform all the students to get back to class faster.

Ye Cheng sighed and took a step to follow, but was stopped by the fat chef.

"and many more!"

He turned around and looked with a frown.

The fat chef sighed and said, "Gou Wa, wait a minute. I'll prepare some food and rice soup for Lao Dai. Can you help deliver it to him?"

Ye Cheng shook his head helplessly: "I can't eat it anymore!"

After saying that, he turned around and left.

The fat chef was stunned. Everyone in the cafeteria felt depressed. Looking at the food that was as expensive as gold, they lost their appetite.

They also wanted to get up and check on Teacher Dai, but after thinking about it, they didn't dare to.

soon.

Li Xin notified all the students, and they all ran to the classroom crying.

Although I say all of them, there were actually only six or seven boys and girls.

After all, ever since Teacher Dai got into trouble, most of the students no longer dared to follow the teacher in class, leaving only these few guys who were known to be extremely stupid.

When everyone ran to the classroom, they cried even harder.

But the teacher Dai, whom everyone had been thinking about day and night, was slumped at the podium.

Someone brought him a stool and propped him up against the blackboard to prevent him from falling.

Those who helped carry it had already left.

Teacher Dai was holding a blood-stained towel and wiping the stains and blood off his face over and over again.

But the footprints and torn clothes all over his body could not hide the traces of the beating he had suffered.

"teacher……"

Everyone rushed over with their hearts broken.

Dai Jingzhi heaved a sigh of relief when he saw everyone coming, and said with a forced smile, "I thought... I thought you guys weren't coming."

"Stop crowding over here! Let's go to class, hurry up..."

He waved his hands and looked at Li Xin with weak eyes and a pleading expression.

The meaning is clear.

You are the class monitor, can you please maintain order?

Don't waste your time, I really can't hold on!

Li Xin had to hold back her tears and asked everyone to return to their seats.

When Ye Cheng closed the classroom door...

"stand up!"

Li Xin cried out heart-wrenchingly.

"Hello, teacher!"

Everyone was shouting at the top of their lungs.

Dai Jingzhi leaned against the blackboard, looking at the children with satisfaction, breathing heavily and raising his hand to press down.

"Sit down, please sit down..."

After everyone sat down, he took a deep breath.

"Children, the teacher called you back in a hurry. Some of you may not have eaten, and some of you are taking a lunch break... The teacher is sorry for you."

"But there is no way, the teacher really doesn't have time!"

"Also, the teacher didn't have time to prepare lessons this time, so I can only teach you whatever I think of... Okay?"

"it is good!"

Everyone responded with tears, and even Ye Cheng, who was sitting below, had tears in his eyes.

What does it mean that the candle burns out before the tears dry up?

Maybe, this is it.

Dai Jingzhi continued speaking.

"Well, today I will teach you about the physics that you are interested in... the physics that I didn't want to teach you before because I was afraid you wouldn't understand..."

"Let's just talk about the simplest thing, which is... light! Everything is made of light!"

"..."

"..."

Dai Jingzhi tried his best to explain the nature of light, its origin, and the continuous evolution of people's understanding of it over the past few hundred years.

Unfortunately, the students in the audience were confused.

Light?

Light?

Is light a particle or a wave?

It is actually a kind of electromagnetic wave?

Light year is not a unit of time, but a unit of space?

The speed of light is a speed that none of us can imagine. Can it take thousands of years in a glance?

……

How can a group of children who have only received basic education understand such complicated and boring physics knowledge?

But even though the children didn't understand, they still tried their best to listen, remember and learn.

It’s a pity that, perhaps because of the scars on the teacher’s body, their minds were often focused on the teacher, and they could not remember much of the vast knowledge.

How could Dai Jingzhi not observe this?

He looked at the children, especially Li Xin, who he considered the best student, all with confused looks in their eyes, and he knew.

Perhaps these children only absorbed less than one percent of what I said.

Qin Gou Wa, or Qin Wenjing, absorbed more because the other's eyes were always bright.

But the concerned expression on his face told Dai Jingzhi that his mind was not on the class either.

Helplessly, Dai Jingzhi had to stop telling the story and sighed.

"Children! The teacher knows that you don't understand, you don't understand..."

"But as long as you remember what the teacher said... remember it forever, you will understand it one day in the future."

"What is light?"

"Light is both a wave and a particle. It is a wave when... and a particle when... It has the dual nature of wave and particle. It..."

"..."

Dai Jingzhi finished speaking while panting, and sternly asked everyone to recite it immediately.

The children were stunned.

Sadness and despair always accompany them. They become orphans because they have painful memories.

Now, Teacher Dai, who is regarded as a parent to them, is about to leave them again. How can they still remember those long words just now?

"Carry it on your back..."

Seeing that everyone was silent, Dai Jingzhi began to speak anxiously.

He was no longer able to repeat it again and could only ask the children to remember more.

Unfortunately, everyone, including Li Xin, still looked bewildered and were about to burst into tears again.

In the end, it was Qin Gou Wa, also known as Qin Wenjing, who shouted loudly.

"Light is both a wave and a particle. It is a wave when... and a particle when... ..."

Qin Wenjing shouted it once, without any mistake, and continued shouting.

All the students were stunned when they saw this, and quickly followed Qin Wenjing in shouting.

Everyone shouted it several times, and finally remembered the words.

Dai Jingzhi looked at Qin Wenjing, also known as Ye Cheng, with approval.

My child, I didn’t expect that in the end it would be you who fulfilled the teacher’s wish!

Then...I should also...

He closed his eyes in contentment, leaned on the podium where he had stood for his entire life, and never breathed again.

"teacher!"

The children discovered that Teacher Dai had stopped breathing at some point. They no longer cared about reciting or attending class and all gathered around, crying.

Li Xin cried the most heartbreakingly, as if he had lost the whole world.

Ye Cheng stood behind the crowd, watching with a sigh, powerless to stop anything.

What happened next was much simpler.

After crying for a while, everyone chased away the adults from the orphanage who were coming to collect the body, propped the door with desks, and discussed how to bury the teacher.

In the end, they decided to dig a hole in the classroom and bury him.

The digging continued until late at night, until a beam of light quietly enveloped them.