I was a gentleman in ancient times

"Today I talk about investigating things and extending knowledge. I think everyone doesn't understand it. Let me briefly explain it here. There is a saying: extending knowledge is in investigating things, and knowing things after investigating things. Note ① It means that only through real things can one obtain True knowledge. Our purpose is to know and study everything thoroughly, and then we will naturally obtain knowledge.”

Wei Su spoke eloquently about his own theory, yes, what he was going to talk about was the theory of materialism.

The people below had never heard of such a statement, and were stunned for a while.

The gentlemen looked at each other, and finally held back their silence.

On the contrary, Xie Zhuo smiled slightly, "Mr. Wei said to understand and study everything, but there are so many things in the world, how can it be possible to know everything?"

Wei Su said: "That's true, but as long as we can understand the things around us, we can take a big step forward."

"Things around you?" Everyone looked at each other, not understanding why Wei Su said that.

"Hahaha!" Ruan Ji laughed loudly, "Joke, how do we not know the things around us? Look, who doesn't know the house, doors, windows, and the clothes and accessories around us? How can we figure it out? "

Wei Su is nothing more than that, but fortunately he became a blockbuster on the day of the lecture, in his opinion, it was just that the gentlemen did not make things difficult for him, allowing him to gain such a great reputation for nothing.Even the envoys sent by his father looked at him differently, but they didn't know that he was really a bully.Ruan Ji looked down on Wei Su even more.

Facing Ruan Ji's questioning, Wei Su didn't take it seriously, shook his head and said: "That's not the case, then I'll ask you a few questions here, do you know what the shape of the sun, moon and stars are? How thunder, lightning, rain and snow are formed? Why are there days Dark night? Why is there a distinction between men and women?"

"Forehead……"

Wei Su's question was thrown down, and everyone was stunned for a while.The sun, moon, stars, thunder, lightning, rain and snow are all things that can be seen, but if they really want to ask, they really don't have an accurate answer in their hearts.

Ruan Ji thought for a while, but he really didn't know how to answer, his face was slightly red, and he said, "This... what is this question?" Seemingly feeling that this would be demeaning, he puffed out his chest and asked loudly: "Mr. Wei probably doesn't know these questions, right?"

Xun Qi smiled and said: "If you don't know, you don't know, but you want to show off. This is called shooting yourself in the foot, you know?"

Ruan Ji snorted coldly, "I don't know the prince, but you look so proud, it seems like you know."

Xun Qi choked on Ruan Ji's choking, which was the first time he suffered a dull loss.Indeed, he didn't know either.

Wei Su smiled without saying a word, his eyes swept around.Everyone frowned and pondered, and almost no one thought about this question. These are things they have known since childhood.But it has always been known that the sun, moon, and stars remain unchanged from ancient times. Some days are daytime, some moons are night, and wind, rain, thunder, and lightning are all gifts from God.

These questions raised by Wei Su now, if you think about it carefully, who has really studied and recognized them?

"The sun, the moon, the stars, the wind, thunder, rain, and snow have their own way of heaven. How can mere mortals understand it?" Xie Zhuo snorted lightly, obviously disdainful of Wei Su's question. Who in this world can understand Wei Su's question? Know?He is not a holy teacher, he is born knowing it.

Tao Jin frowned upon hearing this, this bastard is here to make trouble, right?However, he also somewhat agrees with this statement in his heart, the so-called deeds of the sky are permanent, and no one can see it.

Wei Su shook his head, "We don't know, but it doesn't mean that there are no causes. To spend a lifetime researching and exploring is also a kind of investigation of things. Even if this life is exhausted, there will be newcomers, not one generation, the next generation, and even Thousands of years later, who would dare to say that there was no progress at that time?"

"Hiss~" I didn't expect such a grand wish.Even a few gentlemen felt a faint sense of admiration in their hearts. They are considered great Confucians in a certain field, but they don't have Wei Su's persevering spirit.With the mental perseverance to treat academics in this way, is there any reason why you will not succeed?

"But even if the research results are found, what's the use?" Sun Zhang asked weakly in the corner.He didn't want to speak at first, but he couldn't help it.

"Will it be useless?" Wei Su said with a smile: "Farmers work according to the weather, if wind, thunder, rain and snow can control the direction, and even predict extreme weather and abnormal weather, they can know in advance drought, flood, fire, locusts, etc. Disasters, etc., and then use the correct method to avoid disasters. May I ask if our research and exploration will be useless?"

As soon as this remark came out, everyone was in an uproar.All the people sitting here are today's masters, so they naturally know the importance of Wei Su's words.

Since ancient times, agriculture has been the foundation, and natural disasters and man-made disasters have been attributed to the law of heaven, which cannot be controlled by the world.Over the past dynasties, there are too many people who subjugated the country due to natural disasters and man-made disasters. If natural disasters can be predicted in advance, people can avoid them, and the losses of disasters can be minimized, which can benefit the people.

The more Qin Zhan thought about it, the more excited he got up suddenly, "Sir, can this day really happen?" He asked everyone's doubts.

"Where there is a will, there is a way. If you don't do it, how will you know whether it will be achieved or not?"

"I don't believe it!" Ruan Ji retorted: "I don't believe that someone can really control the way of heaven."

"The so-called way of heaven means that all things have rules. As long as you master the rules, why not? Let's not talk about it, let's do a little experiment today." After Wei Su finished speaking, he asked the servant who was assisting in the lecture to send him a piece of paper. Small jar of water.

"This is a small can of clean water, but I can quickly turn it into ice cubes." Wei Su said after everyone had checked and confirmed that it was just an ordinary small can of clean water.

"Ice immediately?" How is this possible?Now that it is summer, the weather is getting hotter, how can the water turn into ice cubes?

"It's just a dream." Ruan Ji would not believe it anyway, even in the cold winter, this water may not be able to turn into ice.

"Since Mr. Wei said that we will know immediately whether it is true or not, why are you in a hurry?"

Ruan Ji kept silent, so he just waited and watched the show.

Wei Su didn't care about this much, he threw the saltpeter he brought into the water, and stood by, waiting to observe the changes in the water.Everyone paid attention to his movements, and didn't see what happened to him. Could it be that just watching can make the water freeze.

Qin Zhan was a little nervous, pinching his fingers tightly. If Wei Su didn't succeed in what he said, wouldn't he be laughed at.

On the contrary, Tao Jin was very curious and wanted to see what method Wei Su used.After all, he also knew Wei Su better, Wei Su would never lie, let alone do anything uncertain.So he thought that Wei Su could do what he said, but he couldn't figure out what method to use.

Only Wen Liang frowned, he had just seen clearly that the saltpeter that Wei Su threw into the water went right by him.Could it be that the ice formation is related to the saltpeter?

Not long after, a smile appeared on Wei Su's face, and the saltpeter had absorbed the heat in the water, and it had already started to freeze.

When the water was completely frozen and turned into ice, Wei Su asked someone to carry the jar down for everyone to examine.

Even though Ruan Ji didn't believe it, he couldn't believe it when he saw the ice in the jar in front of him. He looked at the jar carefully again, and it was indeed the original one, but the water inside had turned into ice.

Xun Qi laughed loudly, "Hahaha, let me just say, Mr. Wei has a way, why, seeing it with your own eyes, are you still not convinced?"

After everyone had read it once, the surprise in their hearts became even worse.

"It's impossible for this water to freeze for no reason, right?" Chu Yan said without saying much, frowning and stroking his beard at this moment.

"You added saltpeter to the water first, but is it related to this?" Wen Liang asked after thinking for a while, this is the most likely.

Wei Su nodded, and didn't intend to make a fool of himself, "Exactly. Actually, the theory is very simple. Water generally freezes only when it's very cold in winter. There's a limit to this. Just imagine, if the ice exceeds this degree, it will turn into ice." water, and below this temperature the water freezes."

"That's right, the winter is so cold that even the water in the lake freezes, but the summer is so hot that the water cannot freeze anyway."

"Yes, this is the difference in temperature." Wei Su continued: "The water temperature is high and it is not easy to freeze. Then I will use saltpeter to absorb the temperature in the water. When the temperature disappears and reaches a degree of freezing, it will naturally freeze. The water turned into ice."

This is a very simple principle. Wei Su explained it clearly, and everyone finally understood it.Things that I thought were miraculous at first became simple.

"How did sir know that saltpeter can freeze water?" Tao Jin asked curiously, and he had to say that Wei Su always had such a magical ability.This is how the broken bones continue to be connected, today the water turns into ice, and in the future, I don't know what kind of surprises will be given to them.

Wei Su paced back and forth with his hands behind his back: "This requires a pair of eyes that are good at observation, and a mind that can use the brain to think." Of course he would not say, this method is known to almost everyone in the modern age. "If you want, you can go to Mr. Wen's to buy some saltpeter and try it yourself. Summer is coming, and it's not bad to have a pot of ice to cool off the heat."

In fact, Wei Su didn't need to remind them, they planned to go back and try.

"In the same way, what kind of changes will happen if saltpeter is used for other purposes, or mixed with other things? These are more worth exploring." Wei Su sighed, he was too difficult, Some private goods must be instilled.Not to mention that we can count on cultivating scientists, I just hope that I can plant a seed so that they can do more experiments, and it is enough to master certain practices to produce true knowledge.

Wen Liang nodded, he already understood Wei Su's meaning, "Actually, this is also the same as the 'seven emotions' of doctors. The compatibility of different medicines can change the properties of medicines."

"Yes, in fact, everything is connected, it depends on the direction of personal practice."

Everyone was lost in thought, and Wei Su said again: "Don't underestimate today's small experiment. In the future, this science will be passed on, and it will be as small as changing the basic necessities of life, so that everyone can have enough food and clothing. Picking the stars, you can roam the mountains, rivers, lakes and seas, do you still think this experiment is useless? Don’t just focus on the present, after a thousand years, who can imagine what the future world will be like?”

Everyone was shocked. Although they couldn't imagine all this, Wei Su's words were not without reason.They spend their whole lives studying various schools of thought, but what is their ultimate goal?It is nothing more than the interests of the country and the well-being of the people.

Wei Su smiled slightly, the seed had been planted, and it was unknown what it would grow into in the future.