"Wu Chongdao, which one are you playing with Gao Shiyan?"

As soon as he came out of Qionglin Palace, Wu Haogu was grabbed by Su Dongpo's second son, Su Yu. Su Yu's current official is the Longtu Pavilion to be controlled and the Chongzheng Palace, and the official rank of Wensan has been promoted to Tong Zhilang from the sixth grade. However, the real dispatch is still the same as before, and he is responsible for explaining Confucian scriptures to Zhao Ji in the Chongzheng Hall every day. Recently, he was explaining "Theory of Reason" and "Metaphysics" to Zhao Ji - Su Yu participated in the writing of "Theory of Reason", so he was able to explain the key points clearly.

In fact, "Metaphysics" is the knowledge of geometry, which was compiled by Wu Haogu, Zhang Zeduan, Mi Youren, Du Wenyu and others at the same time as writing "Theory of Reason", which was used to verify "Theory of Reason". In the book "Metaphysics", there are not only a lot of geometry knowledge produced in China, but also some geometric knowledge brought by Wu Haogu from later generations, especially in geometric perspective - when Wu Haogu taught painting, he taught a lot of geometry knowledge together, so these people can participate in the compilation of the book "Metaphysics".

In this "Metaphysics", Wu Haogu also introduced a large number of later geometric terms, such as points, lines, straight lines, parallel lines, angles, triangles, and quadrilaterals. At the same time, Wu Haogu also included some ruler drawing tools in later generations into the book "Metaphysics", including compasses, triangles, T-shaped rulers (rulers), scale bars, etc., all of which drew patterns and specified sizes.

Because Zhao Ji also learned a lot of Wuhao ancient painting knowledge, so he also has a certain foundation in geometry, and he has mastered the knowledge in the book "Metaphysics" faster than Su Yu himself, and it has reached the point where he can teach Su Yu in turn.

However, today Su Yu did not find Wu Haogu because of geometry problems, but his father Su Dongpo's instructions, and Su Dongpo wanted to meet and talk with Wu Haogu in secret.

"Zhongyu, you mean ......"

Wu Haogu looked at Su Yu and didn't understand what he wanted to say for a while.

"Let's talk as we go, my father is invited." Su Yi beckoned, and one of his long-term entourages led a horse over.

Wu Chengjiu, who was guarding the gate of the palace, also brought a mount to Wu Haogu, and this nineteenth uncle of Wu Haogu is now also an official, not small! The dignified from the inner hall of the eight products undertook the system, and the military attache at the level of ambassadors and ministers. However, he didn't have a real job, so he still followed Wu Haogu as a follower.

Wu Haogu and Su Yu both got on their horses and walked north along the royal street outside Qionglin Palace. Now is the time for the officials of the two provinces to go home from work, and the people on the royal street are coming and going, all of them are officials and their entourage. There are also many small traders who carry all kinds of dim sum and sell them along the street. There are no commercial houses on both sides of the royal street near the Qionglin Palace, all of which are various yamen, and there are several royal palaces. However, it is not forbidden for vendors to set up stalls, so every morning and evening, there are various food vendors trading along the street, which is very lively.

Su Yu asked: "Chongdao, how did Gao Shiyan make a peach blossom stone khan?" Still asking for the protection of Anxi for Zhao Qianshun? ”

"Peach Blossom Stone Khan was not made by Gao Shiyan," Wu Haogu shook his head and said, "It was there in the early years of this dynasty, and Gao Shiyan didn't ask for the protection of Anxi Dadu for Qianshun." ”

"Since Peach Blossom Stone Khan has existed for so many years and hasn't caused trouble, why bother to poke this hornet's nest?" Su Yu said, "And no one on the other side of the Jiehe River has mentioned the matter of the four towns of Anxi, but Gao Shiyan suddenly mentioned the Qianshun and asked for the title of Anxi...... How can it not arouse suspicion? Now there are a lot of imperial historians participating in him, and he is still so careless, maybe someone will soon join him in collusion with the feudal town! ”

"That's right." Wu Haogu nodded in agreement, "The charge of colluding with the feudal town can indeed be deducted from Gao Yu's head...... But he can't go back to Beijing! Zhao Zhongcheng participated in a charge of inviting him to buy the hearts of the three straight soldiers two days ago, and if he wants to return to the capital, I am afraid it will be even more unreassuring. ”

"Alas, he is even more troublesome than Di Wuxiang this time!" Su Yu shook his head again and again.

"Just let him stay in Lingzhou." Wu Haogu sighed, "Heavy ears are born outside, and Shen Sheng is born inside." As long as he doesn't go back to Kaifeng Mansion, does Yu Shitai really dare to go to Lingzhou to get people? ”

"How do you say something like that?" Su Yi shook his head again and again, "Da Lang, what are you going to do?" Do you really want Gao Shiyan and Zhao Qianshun to go on an expedition to Anxi? This is a desperate army! ”

"What can I do?" Wu Haogu smiled bitterly, "This matter has nothing to do with me, I don't know what Zhao Qianshun thinks?" Maybe he felt that the territory in Hexi was cramped and couldn't support so many people, so he thought about going to Anxi to grab land.

That's right...... It seems that the Peach Blossom Khan and the Chinese governor did not claim to be, but were sealed by the caliphate...... It should be sealed by the caliphate, their Tianfang Sect is ****, the caliph is the largest, and he has to seal it. ”

"Hah...... Lifa? The more Su Yi listened, the more confused he became, "Who is he?" How can you crown me the Khan of China? It's too arrogant, isn't it? ”

"The Caliph is a ...... It's an honorific title," Wu Haogu explained, "and the head of the Heavenly Fang Sect and the official of the Great Food Nation is called the Caliph. The territory of their Tianfang Sect is ****, the sect leader is the official family, and the official family is the sect leader. Whoever is religious must listen to the caliph. ”

"Then this caliph can't be the khan of our China, and we don't believe in his religion." Su Yu shook his head and said, "Could it be that this big food country wants to start a war with our Great Song Dynasty?" ”

"There is no way to start a war," Wu Haogu smiled, "the Great Food Kingdom and the Heavenly Fang Sect were strong when the Tang Dynasty was at that time, but now they have long since declined, and their caliphs have become puppets of the Turks." ”

"Then how dare you crown the Khan of China?"

"I guess someone paid to buy the official, right?" Wu Haogu thought for a moment and said solemnly, "This matter must be investigated clearly, if it is true, a mission should be sent to the Great Food Country to ask their caliph to cancel the appointment of Taohuashi Khan and the governor of China." ”

Wu Haogu has long wanted to send a mission to the Great Food Country! Of course, I didn't want to ask Peach Blossom Khan anything, but I wanted to get the fruits of the century-old Arab translation movement from the University of Philosophy in Baghdad, which is the quintessence of ancient Greek, Roman, and Persian science and culture. If you can absorb the Yuntai Academy, you will be able to build a huge scientific system on the basis of positivism and rationalism.

Although Confucianism, with its positivism and rationalism, has developed its own scientific system—without these two tools, it would be impossible to develop science by the way of thinking of "heavenly reason and human desire"—but absorbing the essence of Western civilization can greatly accelerate this process.

And to send a mission, there must be a well-known name, and it is better to be able to bluff the caliphate at once.

……

"You want to send someone to the Great Food Country to ask for the guilt!?"

The questioner was the sick Su Dongpo, who was in a room full of the smell of traditional Chinese medicine, leaning on a soft couch, holding a copy of "Metaphysics" in his hand while flipping through it, while listening to Wu Haogu talk about his plans. When he heard that Wu Haogu was going to send someone to Baghdad, he was shocked and was in no mood to study geometry.

"Guilty?" Wu Haogu thought for a while, "I really have to ask!" The caliph was appointed governor of China and Taohuashi Khan, which was an invasion of our Great Song Dynasty! If you don't ask about their crimes, they still think that we have no one in China! ”

Su Dongpo pressed his forehead, there are enough troubles, and now there is another Raushzi caliphate!

"What if they ignore it, or even detain the mission? Do you want to raise an army to fight? ”

Wu Hao Gu said: "Then let's seal up the Tianfang Temple and prohibit the merchants of the Tianfang Sect from coming to the Great Song Dynasty to trade." By the way, we should send a sailor to the Srivijaya Kingdom! ”

Su Dongpo rolled his eyelids, what's wrong with this student of his being addicted to war now? I really want to fight the caliphate!

"Teacher," Wu Haogu looked at Su Dongpo, "Don't worry, these are all used to scare the merchants of the Great Food Country...... The big food country is based on business, and it is inseparable from sea trade. As long as our sailors arrive in Srivijaya and assume the posture of interrupting trade, they will admit their mistakes.

Besides, it is indeed the caliph who is wrong in this matter! How could he be crowned the Khan of China by talking to himself? Isn't this a provocation? ”

Su Dongpo had already heard that something was wrong, "The sailor is stationed in the Three Buddhas? Chongdao, what do you really want? ”

Of course, the sailor stationed in Srivijaya is a gesture of crusading against the Great Food Country...... But this is just pretending, the Great Food Country is so far away, how can it be attacked? Even if you ask for sin, it just means, and the real purpose is to force the caliph to hand over all the knowledge in the wisdom hall to "make amends".

In fact, the current caliph has no army at all, and the Seljuk Turks are busy fighting civil wars and also have to wage war with the crusaders, and they will not go to war with the Great Song Dynasty for the title of Taohuashi Khan, who was sold by an unknown caliph more than a hundred years ago.

Therefore, as long as the ambassadors condemn it in a righteous and solemn manner, the caliph will most likely admit it, and it will not make trouble to the point of blockading the Sriwijaya Strait.

But the Sriwijaya Strait, that is, the Strait of Malacca, Wu Haogu has long wanted to intervene!

"Teacher, these three Buddhas are thousands of miles away from the Central Plains, but nominally they are vassals of our Great Song Dynasty, and they have sent envoys to Kaifeng Mansion many times to pay tribute. Why do you think they have to travel thousands of miles to make a pilgrimage? ”

"Naturally, I admire Chinese culture!"

Wu Haogu smiled: "The students think they are in it for money!" Sriwijaya is located in a huge strait, stuck in the shipping lanes of the Great Song Dynasty and the Great Food Kingdom, and all merchant ships coming and going have to pay taxes to them, so they can be rich and powerful. Therefore, they must have a good relationship with us, keep trade unimpeded, and will not turn against us unless they have to. And we just took the opportunity to ask Hari about his guilt to set up a point in the Srivijaya Strait, and if there is a chance, develop a commercial market. ”