Chapter 208

Taoism divides alchemy into inner alchemy and outer alchemy.

Inner alchemy seeks the way to cultivate immortality by exhaling and practicing Qi, meditating and practicing hard. However, not everyone yearns for the deep mountains and forests, can endure day-to-day meditation and hard practice, endure the loneliness day after day, and pursue the ethereal way of heaven.

In particular, the largest source of tourists for cultivating immortals - princes and emperors. One by one, they indulge in worldly wine, sex and wealth. They are not satisfied after enjoying it all their life. They just want to occupy it all their life.

So some people give in to their favor and put forward the use of foreign objects. For example, some natural treasures! Then there was the theory of pill.

External alchemy originated from the pre-Qin formula. It is to burn minerals in a alchemy furnace to make "immortal alchemy"! Later, the human body was designed as a furnace tripod.

Taoism uses various secret methods to burn and refine pills, which are used to take or directly take some zhicao, so as to enlighten their own Yin and turn it into Yang, so as to live forever.

It's ok if you take the herb pill, but if you take the gold and stone pill, it's the old longevity who hangs his life. According to later research, the gold and stone pill contains more than 60 kinds of metals, and many people will be poisoned by heavy metals.

It's funny to say that the people who want to live long are the first to die. For example, Qin Shihuang, who wants to live long, is the best example.

However, it is not that external alchemy is good for nothing. It directly savagely gave birth to the ancient chemical industry, including the contribution of the gunpowder alchemist of the four great inventions.

The topic of pill is too heavy, especially involving Taoism and dignitaries. The water is too deep. The four wisely avoid this topic and concentrate on finding their purpose.

"This is it?" Qin Huaiyu felt the frost white crystal and said with a puzzled face.

In a corner shop, the four finally found the target.

"Several young masters, this is the best wall cream." the owner of the shop is a gray haired old man. Hearing Qin Huaiyu's doubt, he seems to have been insulted.

Wall frost is another name for saltpeter. It is called wall frost because saltpeter often appears under the corner and its color is as white as frost.

Merton looked at the white powder and couldn't help nodding and said, "I'll take all this wall cream."

"Seriously!" the shopkeeper said with surprise on his face, thinking that he had met a big customer this time. At this time, gunpowder is not popular, and saltpeter is of little use. It is not easy to sell at ordinary times.

"How could the famous Mohist son of Chang'an deceive you, a small shopkeeper!" just then a joking voice sounded behind him.

"Mohist school!" the shopkeeper was stunned. Although he was taking it for Taoism, the strong rise of Mohist School in the last half of the year had already attracted the whole city's interest in the hundreds of schools of thought in the pre-Qin period. Of course, he was familiar with the famous Mohist school, Merton.

Merton looked back and saw pound in his usual clothes looking at Merton with a smile.

"Ah!" the four suddenly changed their faces and turned their minds. Since pound appeared here, Li Shimin must be in the xuandu temple.

"Grandpa Pang, how did you... Find here!" Morton stammered.

"Father-in-law, I'm taking good care of the noble people. I just heard the bodyguard report that there are people with strange clothes and sneaky deeds in the back street. It's really you." pound looked at the four people's strange dress and couldn't help but smoke from the corners of his mouth. In other words, it's impossible to keep a low profile wherever they go.

Qin Huaiyu stared at Merton. If it weren't for his bad idea, how could they be so unlucky.

"Since your father-in-law has noble people to serve, we won't bother." Qin Huaiyu said flatteringly, and the soles of his feet slipped, like slipping away.

Merton and others nodded together. Now they don't want to meet Li Shimin at all. They just think that after Li Shimin left Chang'an City for summer vacation, they will stay in Chang'an City for leisure. After making ice, they will present the ice making method to Jiucheng palace.

"I'm not in a hurry! Just in time, a noble man wants to see you!" said pound with a smile.

The heads of the four people suddenly drooped down, and the last chance in their hearts was mercilessly pierced.

"Master Mo, this wall frost..." the shopkeeper asked hurriedly when he saw that Merton four were leaving.

"Yes! Of course! Why not? Wrap it all up." pound said with a smile. His task in person is not only to bring back Merton four people, but also he is also interested in what Merton does. He is ordered by Li Shimin to keep an eye on Merton all the time, but he knows how much Merton can toss, and it's definitely a big deal.

"Yes! Yes!" the shopkeeper was immediately excited, and Merton's face turned black. This time, there were all the people's and material evidence, and the hammer was real!

Xuandu temple.

In the shade of a dense tree, Li Shimin and Yuan Shoucheng were sitting at a stone table drinking tea. They talked happily and burst into hearty laughter from time to time.

Under the nearby tree, Li Chengqian, Li Tai and Li Zhi also occupy another stone table.

While eating snacks and drinking tea, the three looked at the four people standing in the corner and couldn't help snickering.

Merton's four people stood in a row honestly, with a very correct attitude, like a student who made a mistake, waiting to learn a lesson.

"Your clothes are good!" Li Chengqian looked at the clothes of the four people with a look of great interest.

"Go."

Merton's four people immediately glared at the fallen guy.

What's more hateful is that Li Zhi looked at Merton's four different clothes and snickered. He had begun to hold his stomach. If he wasn't afraid of attracting Li Shimin, he would have been lying on the ground and rolling.

Li Tai looked at Merton four with great interest. Compared with Merton's strange clothes, he was more interested in Merton himself.

Among the many princes, Li Tai's knowledge is the best. Even if he looks at the whole Tang Dynasty, it is first-class, but he has no confidence in Merton.

He was convinced by his unfathomable arithmetic and poems well-known in Chang'an City, coupled with the practical way of creating miracles.

"Why are you here?" Merton saw an opportunity and asked in a low voice like Li Chengqian.

Li Chengqian replied in a low voice, "father emperor is about to visit Jiucheng palace. He came here today to repay his wish for his mother."

Merton suddenly realized that no wonder among the many princes, only the three princes born to the eldest grandson queen are here. "

Since Sun Simiao stayed in Changan, she often entered the palace to help the empress grandson to recuperate her body. After months of recuperation, she got a good result and her figure improved. I chose a good time to repay my wish.

Merton looked at each other and couldn't help but feel bitter. How could he be so unlucky and just hit the muzzle of the gun.

"What about you? What's this dress for?" Li Chengqian asked.

"Cool!" the four said in unison