47. What is Physics?

Early in the morning, after Bai Ziyun practiced a set of martial arts, he took Sanniang out of Baiyunzhuang and walked to the school.

As long as it doesn't rain, usually early in the morning, Gongsun Chan will practice martial arts here, and when he has free time, Bai Ziyun will also come here to instruct him in martial arts.

Gongsun Chan is Bai Ziyun's first apprentice, and he can be regarded as the most talkable apprentice, because the age difference between the two is not very big, Gongsun Chan is a young man, and he is not as restrained as an ordinary scholar, unlike Lu Min, who is very disciplined in his words and deeds. These rules are stipulated in the Confucian classics, as the son of the great Confucian Lu Zhi, Lu Min naturally can't be a little sloppy, but Gongsun Chan has no awareness at all, and it is estimated that Lu Zhi does not like it, and there is a big reason for this.

Calculating the time, Gongsun Chan is also coming back soon, and Lu Min is afraid that he will follow his Lao Tzu to teach by example.

Bai Ziyun walked up the mountain, came to the outside of the school building, and saw through the window that the students inside were all focused and sitting in a precarious position.

...... "The body is skinned, and the parents who receive it dare not destroy it, and the beginning of filial piety is also." Standing up and doing the way, making a name for yourself in future generations, in order to show your parents, and the end of filial piety. Filial piety begins with relatives, loyalty to the king, and finally stands. "Daya" cloud: "Wu Nian Erzu, Yu Xiu Jide." ’”

Zi said: "Those who love their relatives dare not be evil; Those who respect their relatives dare not be slow to others. Love and respect are all done to relatives, and morality is added to the people, and punishment is imposed on the four seas. The filial piety of the Son of Heaven is also. "Fu Xing" cloud: 'One person has a celebration, and the people rely on it. ’”

Use the way of heaven, divide the benefits of the land, and use it sparingly, in order to support your parents, and the filial piety of this people. Therefore, since the Son of Heaven is to the people, filial piety has no end, and those who cannot suffer will not have it.

…… Zeng Zi said: "Very much, filial piety is great! ”

Zi said: "Husband filial piety, the scriptures of heaven, the righteousness of the earth, and the deeds of the people." The scriptures of heaven and earth, and the people are the rules. Then the sky is bright, because of the benefits of the earth, in order to follow the world. It is formed by its lack of discipline and its lack of strict governance. The first king saw that the people could be transformed, so the first to fraternity, and the people did not leave their relatives, Chen Zhi was virtuous, and the people were prosperous. The first is to respect, and the people do not fight; guide it to courtesy, and the people are in harmony; Show it likes and dislikes, and the people know the forbidden. "Poetry" cloud: 'Hehe Shiyin, the people have Erzhan. ’”……

The corners of Bai Ziyun's mouth showed a slight smile, now he is no longer the one who first came to this world, full of people who don't understand it, he usually has read some Confucian classics, although most of them are very disdainful, but this "Book of Filial Piety" is still carefully read.

The Book of Filial Piety is a classic of ancient Confucian ethics. Legend has it that Confucius made it himself, but some people in the Southern Song Dynasty suspected that it was due to descendants or his disciples. Ji Yun of the Qing Dynasty pointed out in the "General Catalogue of the Four Libraries" that the book was Confucius's "last words of the disciples of the seventy sons", and it was written in the Qin and Han dynasties. From the Western Han Dynasty to the Wei, Jin, Southern and Northern Dynasties, a great Confucian scholar has made annotations, and Lu Zhi has also annotated them, usually highly respecting the "Book of Filial Piety", and strictly requiring his disciples to abide by the standards of the "Book of Filial Piety".

The book focuses on filial piety and expounds Confucian ethical thought in a concentrated manner. It affirms that "filial piety" is the norm set by God, "filial piety, the scriptures of heaven, the righteousness of the earth, and the deeds of people." The book pointed out that filial piety is the foundation of all virtues, "people's behavior, nothing is greater than filial piety", the monarch can use filial piety to govern the country, and the subjects can use filial piety to manage the family and maintain the lordship. In Chinese ethical thought, the Book of Filial Piety connects filial piety with loyalty to the monarch for the first time, believes that "loyalty" is the development and expansion of "filial piety", and absolutizes the social role of "filial piety".

The Book of Filial Piety advocates that "filial piety" should be integrated into people's behavior, and the requirements and methods for practicing "filial piety" are also systematically and cumbersomely stipulated. Some regulations, in the eyes of Bai Ziyun, a modern person, are completely harsh and cumbersome to the extreme, and even hypocritical and contrived, which is completely unacceptable to him.

But fortunately, the "Book of Filial Piety" does not require many words and deeds of ordinary people, and it is not as perverted as the works made by some Confucian scholars in later generations. Overall, Bai Ziyun can still accept it, it is an ancient book that he can rarely accept. The development and continuation of filial piety in China is indispensable to this scripture.

Since the Han Dynasty, filial piety has been a fine tradition in China, but in modern times many people have been lost. In modern society, it is common to see children scolding their parents, which is completely rebellious in the Han Dynasty, and anyone who dares to do this will be poked in the backbone, and Yan zhòng is likely to be imprisoned.

About half an hour later, Zheng Xuan's "Book of Filial Piety" was finished, and those schoolchildren breathed a sigh of relief and a smile appeared on their faces, because the next lesson was the homework of Shangxian Bai Ziyun. Bai Shangxian hadn't come to class for a long time.

Bai Ziyun does not have as many rules as Zheng Xuan in class, and his lectures are humorous and vivid, unrestrained, and often mixed with some fairy tales, jokes and the like, which often make schoolchildren laugh.

Zheng Xuan often protested, saying that this was not in line with etiquette, Bai Ziyun ignored it, completely went his own way, and with his current status, he didn't care about other people's opinions at all.

After the students rested for a quarter of an hour, Bai Ziyun began to lecture. Sanniang also sat cross-legged on the ground like those schoolchildren. She likes to listen to Bai Ziyun's courses very much, as a personal maid, she almost never leaves Bai Ziyun, plus her brain is also good, and now her knowledge is not bad. Especially mathematically, the horror is no worse than those big family bookkeepers.

"There is a little story in Mencius's "Gongsun Choushang", which is very interesting, let me tell you about it. In ancient times, there was a person in the Song Kingdom who was very anxious when he saw that the seedlings in his field were growing too slowly. On this day, he simply went down to the field and started to pull the seedlings up one by one. He came home exhausted and said to the people in the house: 'I've been exhausted today!' I made the seedlings grow a lot taller all at once! When his son heard this, he ran to the field. All the seedlings in the field withered. This story tells us that everything has its own laws; Whoever violates the law will be punished by the world. You already have some foundation in mathematics, and from today, I will talk to you about physics. ”

Bai Ziyun used chalk to write the word physics on the blackboard, and then said, "What is physics? It is the principle of all things in the world, and physics is the law of exploring the world. Do you know why birds can fly in the sky? Why do fish survive in the water? Why does it thunder and rain, some people say that the thunder and rain are caused by the gods fighting, and some people say that it is the dragon god who is in the clouds in the sky and makes waves. Hehe, in fact, these are just random conjectures of the people of the mountains and wilderness. Physics is the study of the causes and principles of everything in the world, as long as you master physics, you will be able to know why the sky thunders and rains, why it is cold and hot, spring, summer, autumn and winter, ......"

Wild vegetables and big trees, thank the wind and moon dust to dominate the world in the bathtub swimming moon break? Star Marks Tip!!!