"Have you passed on all the ways of penicillin? Penicillin is actually a controlled drug, a prescription drug, I am not a medical student, it is difficult to know the specific formula and data flow. I'm trying to check it out seriously, and I can only hope that your Kyushu Academy of Sciences has great ability to configure it as soon as possible through trial and error. ”

Zhang Zhi stood in front of Li Zhen and said in an extremely fast tone.

As he spoke, his eyes turned red: "You still have two months left." Where do people go when they die? Is it true that if you die, I will never be able to connect with you in my dreams again? Li Zhen, please be sure to cure this disease. I'm so incompetent that I can't get very specific penicillin purification data. ”

Li Zhen's face was calm, he had completely accepted this fact.

Just say, "It doesn't matter." Since the seeds have been sown, let us hand over your life to God. When you know that any effort is in vain, you should not waste your efforts and do more meaningful things. Also, the internal combustion engine, which I want to hear about now. If you say that the car engine is an internal combustion engine, what kind of structure is a car engine? ”

"Alas, it's hard for me to imagine just by your description. The timing was so urgent, I don't know if I would ever have seen the moment when the internal combustion engine appeared before I died. It's a pity that you can't draw drawings like me in this dream......"

Zhang Zhihong's eyes were red: "Let's get penicillin first, okay?" The internal combustion engine was left behind. ”

Li Zhen said very seriously: "Zhang Zhi, if penicillin is not developed within two months. I died two months later. So did I spend the rest of my life researching penicillin as a useless endeavor? If I die in two months, and I have something left in this world, will what I do become meaningful? ”

"Good...... Internal Combustion Engine......"

Zhang Zhi sobbed.

————

I woke up from a dream, as if I was in a different world.

10,000 years ago, Zhang Zhi got up from bed and hurriedly called his father.

"Dad."

"Huh? Are you crying? What are you crying about? What happened to you? ”

"Dad, do you know anyone who runs a pharmaceutical factory? Or can you find someone who understands pharmacology? ”

"What are you going to do?"

"I want to know exactly how penicillin is prepared. I want the specifics of the penicillin purification process, including all the data in it. ”

"What are you doing studying this? What are you crying about? Penicillin...... You buy it. Hospitals sell them. Oh yes, prescription drugs don't sell casually now, but your uncle runs a pharmacy, so you can buy them if you want......"

Zhang Zhi was inexplicably upset and yelled loudly: "I didn't want to buy it." I want the recipe! I want the recipe! I want all the penicillin separation and purification data, I want data! ”

“……”

Zhang Zhi's father was silent on the other end of the phone for a long time, and sighed: "I don't know the one who opened the pharmaceutical factory. ”

Hung up the phone, Zhang Zhi hung up the phone and rushed to his school. She looked everywhere for people, for professors in biochemistry at school, for teachers, for experts.

One by one, she asked about the specific purification and separation method of penicillin, as well as the data of penicillin.

What can be found on the Internet is only the research history of penicillin and the general purification principle. The data in it is extremely confidential, and it is impossible to appear in the public eye at will.

But Zhang Zhi was disappointed, and no one knew.

If a thing is studied, then naturally the manufacturers who produce it will understand the things in it.

It's like every one of us eats rice, and professional old chefs will cook rice in various ways. But the old chef can't tell the principle of rice transgenic, and he can't say the specific data of each rice.

The same is true for penicillin. Something that has become common in the world, but when you really want to restore it, you will find that it is basically impossible......

Everyone knows that penicillin is melons and steamed buns that have been left for a long time, and they are moldy on the top. After that layer of mold is purified and cultivated, it is penicillin. That layer of mold has a strong medicinal value.

The principle is simple. But...... Purification, separation, that's where the real difficulty lies.

It is important to know that that layer of mold contains not only penicillin streptococcus, but also many other bacteria.

How to filter out only what we need from this layer of mold. Here's the problem.

Zhang Zhi almost collapsed and cried bitterly.

She was very uncomfortable, and she had always responded to Li Zhen's requests and answered all questions. This time, she really couldn't answer......

After a class, Zhang Zhi did not leave the classroom, lying on the table and sobbing.

A teacher from the philosophy department passed by here, saw a female student crying, and walked in: "Hehe, classmate, why are you crying here?" ”

Zhang Zhi wiped away his tears and hurriedly laughed: "I'm sorry teacher." I'll just go. ”

The philosophy teacher glanced at her with a smile: "I see a sense of powerlessness in your eyes. I teach philosophy and have studied some psychology, so maybe I can enlighten you. ”

The suicide rate in universities is extremely high, and the psychological quality of students is generally weak today. Therefore, professors and teachers especially like to enlighten others and dredge the psychological burden of students.

Crying alone in the classroom made the philosophy teacher feel that she had to enlighten her.

Zhang Zhi smiled, he wanted to leave, but suddenly his heart moved, and he asked, "Teacher." Do people have souls? ”

The teacher in the philosophy department was obviously surprised that she would ask this question, hesitated for a long time, shook his head, and said, "No." ”

"There was once a famous 21-gram experiment. Scientists put people who were dying on a bed that could be weighed. When the heart stops, the person's weight is reduced by 21 grams. So it is concluded that the human soul weighs 21 grams. How can there be no soul? ”

The philosophy teacher smiled slightly: "Not from a medical point of view. From a philosophical point of view, do you know why there is such a thing as a soul? ”

"I don't know."

"Human beings need a kind of spiritual sustenance, because the psychological state of everyone who does not want to die contradicts the cruel reality that life has an end. Therefore, from the psychological state, it gives birth to such a spiritual desire of human beings, and it is also the spiritual sustenance. It is a yearning for the future. We enlighten ourselves that death is not terrible, because after death the soul goes to a blissful world, and there is no pain in heaven. Therefore, the soul theory has appeared, and since the beginning of human civilization, human beings have believed that the soul exists. ”

Zhang Zhi also said: "I think human beings have souls. Because many people have a near-death experience before they die......"

The philosophy teacher laughed: "Hallucination." ”

"How can it be an illusion? They feel so real. ”

Now let's talk about this philosophical question from a medical point of view. The human brain is an extremely mysterious institution, which secretes all kinds of miraculous substances, among which there is a substance called dopamine. ”

"I know dopamine."

The philosophy teacher nodded: "Let's put this aside. I'm telling you, when you die, you don't really have anything. Death represents disappearance, it represents annihilation. It means that from now on, this person will never leave any trace in the world again, and the world continues. Human beings always think of themselves as great and special in their own configurations, but they don't. Although we are advanced animals, we are still not out of the category of animals. High intelligence does not mean that it is out of the realm of biology.

Death means that there is nothing left. ”

Zhang Zhi laughed and said, "Your answer is cruel. ”

The philosophy teacher smiled: "Very realistic. Now back to the question of dopamine. Tell you something more cruel, more realistic, and more desperate. ”

Zhang Zhi was silent for a while and said, "Teacher, aren't you afraid that I won't be able to open it?" ”

"No, because after you listen to what I am about to say to you, you will understand what it means to be alive."

Zhang Zhi's heart moved: "Please say it to the teacher." ”