In fact, before Sun Xiangfu could make out enough with the children at home! Li Shimin came to the door the next day.

"Is the cultivation of various crops in Lingnan going well?"

"It's not bad, and in a few years, there should be a steady stream of harvests."

There was no false greeting, and between the questions and answers, the two gentlemen and ministers had already sat down, and the children who were playing in the hall were also taken down by Hongmei Chuntao and them.

"If I want to rule the world, so that all the people, regardless of race, will no longer suffer from war, can Zhengming teach me?" After Li Shimin sat down, he went straight to the point.

"Your Majesty has such a grand wish, and the minister naturally supports it, but the minister still has the old saying, try not to achieve such a goal in the form of war." Sun Xiangfu maintained his usual position.

"Just try not to use the means of war?" Li Shimin pointed out the key point in Sun Xiangfu's words, before, he did not approve of launching any great unification battle.

"It is impossible to unify the world without showing enough force to the people of the world to maintain peace in this world, and the minister knows this very well, so the minister just hopes that His Majesty will do less killing, so that when the history books of a hundred years and thousands of years later, when writing the deeds of your life, what is preached is benevolence, not the military exploits obtained in exchange for killing." Sun Xiangfu replied very clearly.

If the king advocates the conquest by force, the generals are even more so, according to the current pace of development, a hundred years later, it is not impossible to move towards industry in an all-round way, and even a scientific and technological society, if, at that time, the ruler still holds the idea of using force to suppress all disobedience, it is very dangerous, when all human beings become a country, everyone should have only one goal, that is, how to make everyone live and reproduce better, eliminate the problem of class exploitation, and cherish everyone's life, Caring for everyone's health.

However, this is just a beautiful fantasy of Sun Xiangfu, and he himself knows this, because human senses, and total desires, are innate, just like Sun Xiangfu himself, he can't distinguish the face of the Hu people in the Western Regions, and there are many people, who will be angry when they see ugly people, and happy when they see beautiful people.

These will lead them to have a variety of completely different emotional attitudes when they are in the world, these are the beginning of the dispute, Sun Xiangfu actually doesn't think that anyone can control these things, so even if they are unified now, in the future, there may still be divisions.

First of all, through a period of rule, he can promote Han culture with greater intensity, promote the integration of nationalities and races to a certain extent, and achieve the effect that even if it is divided, the Chinese language and Chinese characters are still the world's common cultural transmission channels, so Li Shimin is not useless.

Because, if there is no communication barrier for human beings, in a long-term, same cultural atmosphere, all future generations will have the same ancestry, even if there is a dispute, it is only a power struggle at the top level, and basically will not kill civilians.

Sun Xiangfu's words made Li Shimin silent for a while, in fact, he was what he was considering, that is, the question of how to complete the unification, with the current military strength of the Tang Dynasty, in fact, there is no need to worry about the problem of fighting the country, there are gunpowder, hot air balloons and other big killing weapons, in this world, there is no army that can compete with the Tang Dynasty.

However, what about after it has been defeated by force? How to manage such a large territory? How to ensure that everyone does not rebel against Datang? If the unification of Eurasia only drags the Tang Dynasty into endless wars, it will really outweigh the losses.

Thinking that every time the Anxi Metropolitan Protectorate reported something to himself, he needed the messenger to run fast for more than a month, and he issued a decree to the past, and the same was true, he had a headache, if the territory expanded even more, it might be three or four months, or even half a year or more.

As long as he imagined the situation in his head, he felt a headache, so he had to nod his head in recognition of what Sun Xiangfu said, and try to achieve reunification through non-war means, the best is to let the people of the Western Regions take the initiative to return to the rule of the Tang Dynasty, so that the possibility of rebellion is much smaller.

"So, in your opinion, what should I do?" Li Shimin asked again.

Sun Xiangfu thought about it, but did not answer positively, and said, "Your Majesty wants to appoint Deshou as the secretary of the Ministry of Agriculture, so he should have some new understanding of the future development direction of Datang!" ”

Li Shimin nodded and said, "Yes, I found that the reason why my Datang has the current scene is entirely because of various new technologies, which have greatly improved our agriculture, industry, commerce, medical care, and military equipment. ”

When Sun Xiangfu heard this, he had to sigh that Li Shimin was indeed a political genius, he could always jump to a height that ordinary people did not have, to think about problems, if Li Chengqian, or anyone among the children of the peasant sect, had such thoughts, it would not be strange, because this was all instilled in them by Sun Xiangfu at ordinary times.

However, Li Shimin was able to realize such a truth from these things by himself, and began to implement it without hesitation, which means that his personal comprehension is super strong and his knowledge is relatively high.

"Your idea is correct, the whole country is pragmatic, and if you learn from pragmatism, the country will be strong and the people will be strong. The whole country is retreating, and if the study of retreat is promoted, the national strength will be weak, and the people will be weak and incompetent.

Science and technology is a truth-seeking and pragmatic science, it can make the productivity of all walks of life improve, as long as the productivity is constantly improving, then, our Datang's national strength will be more and more sophisticated, to a certain extent, just like now my Datang and the countries of the Western Regions, appear in all aspects to crush their situation, our country, is basically stable.

And if one day, there are other countries whose level of science and technology far surpasses that of our Datang, they will also crush us just like we are now crushing the countries of the Western Regions.

Therefore, the minister believes that in the future, the strength or weakness of a country is likely not to be in the population and territory, but in the height of science and technology.

When someone has a weapon more powerful than gunpowder, a faster and more agile aircraft than a hot air balloon, they may be able to defeat us easily with only a small number of men. ”

What Sun Xiangfu said is very acceptable to Li Shimin, who has already figured out this aspect earlier, and it is simply the highest level of science and technology in Datang now, so it is Datang who crushes others, as for the future, Li Shimin will definitely not allow others to surpass Datang.

"However, does this have anything to do with the united war?" Li Shimin returned to the topic.

Sun Xiangfu smiled and replied, "You have realized the importance of the development of science and technology, then, you should rely on science and technology to achieve future domination of this world, such as now, we Datang, we can build a straight, smooth, fast-passing cement road, then, let's build it from Guanzhong, all the way to Anxi Dadu Hufu, Broken Leaf City, will it strengthen the center of the imperial court, for the control of the Anxi Dadu Hufu area?" ”

"Repair to Broken Leaf City?"

After Li Shimin was stunned for a moment, he felt that it was very necessary, just like the original journey from Chang'an to Dingxiang, almost 2,000 miles, even if it was a horse, it would take about ten days, because the road was not easy to walk, there were many muddy mountains and rocks, and the horse often did not get up when he ran, and he did not dare to run fast, for fear of wrestling.

But then it was different, after the construction of the wide cement road, it was easy to walk 400 miles a day on horseback, and it only took five days to reach it by normal riding.

After that, after the horse changing stations and hotels along the way are all built, messengers and carriages can keep the fastest speed for twelve hours, and ordinary carriages and horses, not to mention reaching the speed of eight hundred miles of expedited speed, six or seven hundred miles a day, can still be done, then, the fastest three days or so, can reach Dingxiang from Chang'an.

Based on the distance of about 8,000 miles from Chang'an to Broken Leaf City, if a direct cement road is really built, calculated by a journey of 600 miles per day, it may only take ten days to run a trip, and if the messenger has a post station along the way to change horses and people, he can basically travel thousands of miles a day, and within ten days, he can complete the communication, which is faster than the government decree of Guanzhong in the previous years to reach many places.

In fact, someone put forward this idea in the court earlier, but the amount of work is relatively large, and the funds required are also large, so it has been stranded, but now, the court is not short of this money.

Seeing that Li Shimin thought for a moment before opening his mouth to ask, Sun Xiangfu knew that he also had such thoughts, and said, "The convenient road can make the center of the imperial court have stronger control over these more distant areas. ”

Sun Xiangfu From this level, the strategic intention in Li Shimin's mind was immediately clear, he first locked on Central Asia, and South Asia, the two regions of Central Asia, and now many small countries in Central Asia, affected by the impact of the Great Eclipse, have the threat of the kingdom, and their suzerain, the Byzantine Empire, is full of concerns, does not want to start a full-scale war with the Great Cannibals, consume the national strength, and do not care about them, which leads to the fact that they have begun to focus on the Tang Dynasty, after all, the Anxi Protectorate of the Tang Dynasty is next to them, so close, With such a thick thigh, they can't ignore it if they want to.

And many small coastal countries in West Asia, in response to Tianzhu's attack, have been exhausted, poor, people to the Tammo Road influx, in fact, to now, the Tang Dynasty wants to control these two regions, there is no need to go to war, only need to open a certain policy.

For example, accepting their surrender to the Tang Dynasty and promising some guarantees after surrender, and this move will definitely cause dissatisfaction among the existing Western powers, accommodate the weak, hammer the powerful to death with one punch, and the goal of reunification will be basically completed.

"Zhengming's thinking is really clear, but I know that you must have a lot more specific ideas, because you just mentioned relying on science and technology to achieve future domination over those distant territories, you might as well say it together, and I can do it in my heart."

Li Shimin is a person with a strong sense of the overall situation, since Sun Xiangfu mentioned this issue just now, he will definitely not forget it, and will definitely ask it to the end.

"Your Majesty, do you know why the minister sent some sisal and rubber sap to Chang'an and handed them over to various material research institutes for research?" Sun Xiangfu knew that this would be the case early on, and asked with a smile.

"What are you going to make?" Li Shimin raised his eyebrows and looked at him with expectant eyes.

"Something that can make cars and ships move faster, and can keep moving, I call it a steam engine, as long as this thing is built, then it will greatly shorten the time you can go to wherever you rule, but this thing, it is complicated, it will take some time to overcome all kinds of technical difficulties, at the moment, it only exists in theory." Sun Xiangfu explained.

"Steam engines? How did you come up with this thing? No matter how big Li Shimin's brain hole is, he can't imagine what kind of thing can be so powerful, so he asked in surprise.

Sun Xiangfu thought about it, and directly pointed to the stove that boiled tea in the living room, "Look at this stove for boiling water, there is less charcoal fire below, and there is always hot gas in the spout of the cooking pot above, constantly rushing outward, on the latest water steamer, it has been able to use solar energy to burn this cooking pot, and the hot gas that comes out of it is introduced into the bottom of the steamer lattice with an iron pipe to steam food, perhaps, we can also use its principle to do many other things." ”