People who do learning always have a temperament and character, and there is a lovely obsession with madness, and many of the world's learning from ancient times to the present day are created by these obsessive people. Pen "Fun" Pavilion www.biquge.info

Li Su has always respected scholars, no matter what kind of knowledge, as long as someone is obsessed with it, this person is not necessarily a good person, but the kind of concentration and persistence he has when studying learning is the most lovely.

Of course, Li Su is not a scholar, although everyone in the world knows that he can write poems and write endowments, can invent and create many novelties that are useful to the country, and can also produce a bunch of strange topics for the country, etc., Li Su himself knows that in fact, he is not a scholar, at best he is a porter of learning, and he is a pseudo-scholar.

Strictly speaking, Li Tai is really a scholar, in contrast, his reputation in the academic world is much more dazzling than his status as a prince, if he continues to study, there will be a great Confucian in the history of the Tang Dynasty, and his achievements are much higher than those of the prince.

It's a pity that learning can't defeat the lust for power after all.

The benefits of learning were obviously not as good as those of the prince, so Li Tai chose another path that was not suitable for him.

Li Su didn't care about his choice, after all, since the honeymoon period of the allies was over, everyone was a little reluctant to even be friends, and Li Su only cared about whether he was good or not.

"This question...... Do you want to know the answer? ”

Li Tai's chick nodded like a peck of rice, his eyes full of antiquity.

Li Su touched his chin: "This question is a bit difficult, it's more difficult than the question of life and death last time, I guess you know it, right?" ”

Li Tai hesitated and nodded.

Li Su smiled: "To solve the problem, the price will increase." ”

Li Tai frowned, he didn't like others to take such serious academic issues as a matter of goods, knowledge is priceless, and it should not have anything to do with mundane things like money.

Li Su smiled nonchalantly, well, I just like you to look at me unpleasantly but take me helplessly.

"Rise! You say whatever you want. "Li Tai is very generous. For him, who is rich and rivals, money is not a matter at all.

"Five thousand!" Li Su's eyes lit up, and his whole person was in good spirits.

"Give!" Li Tai agreed without saying a word, turned his head around, and said in a loud voice: "Come on, quickly prepare 5,000 pieces of silver cakes, and send them to the Hou Mansion of Li County, Taiping Village, and do it immediately!" ”

The palace steward, who had been following the two of them and obeying orders anytime and anywhere, hurriedly bowed down and turned around to prepare the silver cake with a bitter face.

What day is it, one after another came to the palace to extort money, just walked a journey to the old man, here is a small county marquis knocked hard, is it that the prince's face is engraved with the words "people are stupid and money come quickly"?

The money was on the road, and Li Su's mood suddenly became extremely bright, and even his smile was much more sincere.

"Your Highness really doesn't have to be so polite, how can this be embarrassing......" Li Su pretended to be polite, and his face was particularly hypocritical.

Li Tai said puzzledly: "Didn't you say that you want five thousand?" Why are you suddenly embarrassed again? ”

Li Su was stunned for a moment, so he had to explain patiently: "I don't have to be so polite when I said just now, in fact, I am being polite to you, if you are really polite, then you are too polite......"

The words made Li Tai's head a little dizzy, so he skipped it rationally.

"Okay, I also ask Brother Zizheng to solve Tai's doubts, and Tai listens." Li Tai's attitude of seeking advice is very humble.

Li Su pointed to the pool and sighed: "Actually, you don't have to make it so complicated, the problem of water entering and exiting the water can be solved by multiplying and dividing a few numbers, you are building a pool again, and breaking the craftsman's legs, it is really a sin, if I give you a question about Chang'an City another day, you still have to demolish Chang'an City?" ”

Li Tai trembled in fright, the fat on his face trembled like waves, and he said with a panicked face: "Don't! Stop giving me questions! I'll admit you're smarter than me, enough is enough! ”

Saying that, Li Tai turned his head and picked up a piece of dry branch from the barren grass geography, handed it to Li Su, and said humbly: "Please also ask Brother Zizheng to solve Tai's doubts on the spot." ”

"Here?" Li Su frowned.

"Yes."

Li Su tightened his brows and looked at the dirty dead branch in Li Tai's hand, met Li Tai's expectant and eager gaze, endured all kinds of discomfort from the attack of cleanliness, took out a white silk towel from his arms, carefully wrapped one end of the dead branch, and then grabbed it with two fingers, the expression of disgust was like pinching a piece of.

Reluctantly squatting on the ground, Li Su pulled it up with a dry branch, and explained while paddling.

"You see, if you think that the water of the whole pool is 'one', each hour of water is one-third, and the water that comes out is one-fourth of the water. Of course, we have to use the inlet water to subtract the outlet, so it is one-third minus a quarter, and the result is the pure inflow of water at each hour after subtracting the outflow, so the problem is, this result is only the inflow of water per hour, but we need to know how many hours to fill the pool, so we need to use the 'one' of the total amount of the pool to remove the amount of water in each hour, and the result is twelve, so the pool is filled with water at the same time as the water is out, and finally it takes twelve hours to fill the pool ......"

Li Su's cheeks twitched, he was silent for a moment, and said slowly: "Words...... This pool is really boring, but anyone who has a dream in life can't do such an idle thing......"

Li Tai was about to cry again, with an expression of urgent approval: "Now...... You finally know my pain, don't you? ”

Li Su looked at him sympathetically: "I know, I know, but ...... The money still has to be given. ”

Li Tai sighed, squatted down and looked at the string of numbers that Li Su drew on the ground, stared intently for a long time, and then ...... He cried again.

Today's fat man is a little too sad.

Raising his teary-eyed head, Li Tai cried: "Brother Zizheng, why did you write this...... I can't read a word? What do you mean by these distortions? ”

Li Su scratched his head: "Oh, that's called Arabic numerals...... You don't have to delve into this, the answer has already told you, twelve hours, absolutely yes. ”

Li Tai was anxious: "But, what I want to know is the method!" Why did I call a craftsman and build a pool, fiddling for many days without getting an answer, while you, with just a piece of dry branch, have an answer, how did this answer come about? ”

Li Su blinked: "There is an old saying, 'It is better to teach a man to fish than to teach him to fish', do you understand the meaning?" ”

Li Tai touched for a moment, nodded quickly, and blurted out praise: "Brother Zizheng is casually every word, this is very good, Tai remember." ”

Li Su shook his head: "I mean, the answer I just gave you is 'fish', I can guarantee that this fish is absolutely genuine, but how to get this answer, this belongs to the scope of 'fish'......"

has been in contact with Li Su for a long time, and Li Tai also understands his temperament, and when he heard this, he immediately said with a witty face: "So, this 'fishing' is another price, right?" ”

Li Su glanced at him appreciatively: "The son can be taught, it's too easy to talk to smart people, and I'll give you a twenty percent discount." ”

Li Tai gritted his teeth: "Okay!" ”

Li Su sighed, he really didn't want to take this deal, because if you want to master the method, you must start teaching from Arabic numerals like teaching enlightenment children, then the addition, subtraction, multiplication and division of numbers, and then to the one-dimensional one-time equation, the binary one-time equation, etc., for Datang, this is a new discipline, although there is only one student, but it is still very difficult to teach, with Li Su's lazy nature, he is even willing not to make this money, and he is not willing to let himself work too hard.

"Let's talk about it." Li Su immediately changed his mind and coped very perfunctorily.

Li Tai nodded hopefully, and at the thought of being able to satisfy his thirst for knowledge, the sad fat man turned into a bright fat man......

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That night, Li Su stayed in the Wei Palace, Li Tai was in a good mood, so he began to make a job, fine wine, food and beauty, in the front hall, Li Tai, who drank during the banquet, smiled mysteriously, took out a ball of oil paper from his arms, and after opening it, Li Su suddenly found that it was five stones, this dead fat man actually invited himself to eat together, Li Su immediately refused sternly, and casually found an excuse to go into the room to rest.

Early the next morning, Li Su left the Wei Palace, returned to Taiping Village, just fell on the big chaise longue with black bear skin, exhaled comfortably, and the matter of teaching Li Tai was immediately forgotten by Li Su to the clouds, if nothing else, he may not be able to remember this matter in half a year.

Continue to live a lazy and leisurely day without thinking of progress, the New Year has passed, the weather in Guanzhong is already cold, Li Su is reluctant to go out, hide in the greenhouse every day, scald a pot of wine, put a few small dishes, the tribes in the house know Li Su's temperament, every three or five days they go to the mountains near the village to hunt some pheasants and hares, the cook at home carefully cleans the game and cuts it into slices, pickles it with salt, pickles it for half a day, takes it out after pickling for half a day, skewers it with bamboo skewers, and then matches it with cumin and a handful of chopped wild vegetables as a garnish, The finished product that the maid brought into the greenhouse was very tall.

So Li Su drank wine and barbecued meat every day, and the days were like fairies, only his father Li Daozheng occasionally couldn't see it, and he taught him a hard lesson with his family law, and the father and son chased and fled, circling around the big ginkgo tree in the front yard, and the family quickly returned to calm after a burst of chickens and dogs, and the next day Li Su continued to do his own thing, until the next time his father beat him again.

This is life, plain as water, with occasional ripples, and soon and calmly.

There are only two days before the Shangyuan Festival, the house is hung with red lanterns, Li Su is also ingenious, he wrote more than a dozen anagrams and pasted them on the lanterns, the anagram is not difficult, and the sword goes sideways, probably it should belong to the category of brain teasers, the trees in the front yard of the Li family are all hung full, the head of the family speaks, promises a heavy reward, and there is a bounty for every riddle guessed, which leads countless domestic servants and servants and tribals to compete for guesses.

Although the house is small and the people are not prosperous, the happiness and warmth of the small family are not comparable to those cold gate valves.

…………

The day before the Shangyuan Festival, just when the Li family was immersed in a celebratory atmosphere, a eunuch came to Taiji Palace to deliver a decree, and Li Shimin summoned him.

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