Zhang Lao gave lectures as usual, Xu Guangling listened to lectures as usual, and Chen Zhihe stood still as usual.
Well, in the words of his old father, being able to stand in this study is a blessing earned in eight lifetimes.
Yesterday, Zhang Laoyou said that today he would talk about "medicine".
The old man cherishes his time very much and never talks nonsense when he is not gossiping. Of course, it can be said that this is seriousness and solemnity.
"If you go to the wild and see it."
"You will find that birds eat wild grain ears in their mouths, animals dig up wild grain roots and eat, such as monkeys, squirrels, etc., and eat wild fruits."
"It is the instinct of animals to collect edible plants, grains, etc. to cover their bellies and extend their lives. It is something they are born to do. Animals are like this, and humans who are dressed like animals are no exception."
"The difference between a beast and an animal in terms of clothing is that it has an extra layer of clothing."
"This layer of clothing represents civilization, discovery, refinement, and higher yearning and pursuit."
"For this reason, among the genus of plants, there are two types of food for humans, one is food and the other is medicine."
"Food is for daily use, medicine is for expediency."
"Food is ordinary, medicine is special."
“Food and medicine have the same origin, but they have different uses.”
"I would like to say that this is the first point I want to tell you today, that is, 'food and medicine have the same origin' and 'food and medicine have different uses'."
Xu Guangling nodded.
Some time ago, he analyzed all the ingredients around him through Shennong Jue, and he had personal experience of this. For example, lotus root can relieve coughs and moisturize dryness, and kiwi fruit can lower fat and blood pressure. These are all "medicinal", but
The two themselves are ingredients.
The medicinal effect of the food will not be that strong.
But at the same time, there are no major side effects like medicinal materials.
After nodding, Xu Guangling did not hide it, but told the teacher all his understanding of this aspect.
After hearing this, Mr. Zhang nodded lightly.
This is also the usual attitude of the old man.
"When talking about medicine, we have to talk about "Shen Nong's Materia Medica"."
"This is the first treatise on medicine since the beginning of our civilization. Even now, the theoretical level is still the highest. For thousands of years, no one can surpass it."
“In Shen Nong’s Materia Medica, ‘Materia Medica’ is divided into three types, or three grades.”
"The best quality is nourishing."
"It's non-toxic, take it often and for a long time and it won't hurt anyone."
"The middle grade is blended."
"Non-toxic, slightly toxic, use with caution."
"The lower grade is attack."
"Toxic, even highly toxic, use with caution."
"I would like to say that this is also the second point I want to tell you today. Medicinal herbs are divided into three categories: upper, middle and lower due to their different properties and functions. The division of these three categories can span all medicines and can also be used in ancient and modern times.
China and foreign countries, and the future, forever."
Xu Guangling nodded.
It's hard to say forever, but at least within the foreseeable future of one or two thousand years, this division is unlikely to be broken.
"Under these three divisions, Shennong's Materia Medica also put forward the first principle of drug use."
"That is, 'the king, his ministers and his envoys'."
"You are the master, the most important one, corresponding to the 'top grade' in the herbal medicine."
"The minister is the one who cooperates with the king and is the yin and yang of the king. It corresponds to the 'middle grade' in the herbal medicine."
"Like milk."
"Some people want to drink milk because of its nutrition, but they don't like the taste, so merchants add probiotics to the milk to ferment it into yogurt, which has a better taste."
"This is the cooperation between the king and his ministers."
"Monarch + minister is also the most commonly used method of drug compatibility."
"Assistants and envoys each have their own missions and functions, such as Yanzi envoys to Chu, Bao Gong handling cases, etc. This is the case. These categories do not need to be 'general materials', but preferably 'partial materials'. Has a unique and significant unilateral effect."
"All combinations of drugs are carried out under the general framework of 'the emperor, his ministers and his envoys'."
"Whether it is two medicines, twenty medicines, or a large formula of two hundred medicines, this most basic principle must be followed."
"This is the third point I want to talk about."
"And the fourth point I want to talk about next is some common and special phenomena that occur in the coordination process of monarchs, ministers and envoys."
"A minister, he is very capable and highly appreciated by the monarch."
"The monarch has a counselor beside him who is also very capable and is also highly appreciated by the monarch."
"But this minister and this counselor were living in the same trough, but they disliked each other extremely. The minister dismissed the counselor as a villain who got lucky, and the counselor dismissed the minister as being narrow-minded and intolerant of others."
"So if the monarch allows these two men whom he respects to conspire, the result will be very bad."
"This is a phenomenon in drug compatibility, called 'mutual incompatibility', that is, two medicinal materials are obviously good, but they cannot be used together. They will undermine each other and destroy each other."
"The relationship between drugs is like the relationship between people."
"Some admire each other, some hate each other, some obey each other, one master and the other cooperate tacitly, and some are like husband and wife. The husband is strong and the wife is weak, but the weak wife can hold the strong Her husband turned it into soft flesh that wraps around the fingers.”
"Such relationships are called the 'seven emotions' in Shen Nong's Materia Medica."
"To be specific, it means 'walking alone, begging each other, entrusting each other, fearing each other, hating each other, killing each other, and opposite'."
After saying this, Zhang Lao paused, then stood up, picked up a scroll from the side of the desk, hung it on the front wall of the study, and then slowly unfolded it from left to right, but it turned out to be a giant map of China, with the key points in the map It shows the mountain and water landforms.
Well, there are only mountains and rivers.
By the way, this is the first time Xu Guangling has taken a serious look at a map of China.
And through this map, the mountains and water veins on this land are clearly visible.
"Sorry, let me briefly tell you about herbs and geography." Standing in front of the map, Mr. Zhang pointed at the map and said.
"In the north, the further north you go, the less sunlight you get, and the general temperature is lower throughout the year. Relatively speaking, the growing environment for vegetation is also harsher."
"As the saying goes, 'Spring in Wuyuan comes late as usual, and the willows are weeping in February without hanging silk threads. Now the ice is blooming on the river bank, and it is the time when the flowers are falling in Chang'an.'"
"In order to withstand the harsh growth environment, plants need to have strong vitality."
"And this vitality is reflected in medicinal herbs, which means that they are multi-nutrient and nourishing."
"So, taking the north and the south together, northern herbs are more nourishing, while southern herbs are more harmonious. For the same reason, alpine herbs are more nourishing, low mountain herbs are more harmonious, land herbs are more nourishing, and swamp herbs are more harmonious."
"That's the overall picture."
…
Next, Mr. Zhang talked about the mountains and water veins on the map one by one, from north to south, from east to west.
An hour later, this class ended.
And through this lesson.
Xu Guangling learned that food and medicine have the same origin, but food and medicine have different uses.
Xu Guangling knew that medicine was divided into three categories.
Xu Guangling understood the relationship between the emperor, his ministers, his envoys, and the seven emotions between medicines.
In Xu Guangling's mind, there was an overview of the Chinese landscape, and one thousand eight hundred and sixty-two medicinal herbs generated around this picture.
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