Halfway through the memorial, Li Yuan felt a little dizzy and looked even more difficult to see the contents on the memorial. However, at this moment, Li Chengdao suddenly trotted in from outside. When he saw Li Yuan looking at the memorial with difficulty, Li Chengdao immediately stepped forward to take the memorial from the eunuch, and smiled and said to Li Yuan: "Grandfather, why not let Daoer help you read it!"

"Okay~, it's still my family's filial piety!" Li Yuan didn't like to let others read memorials to him, but he did not include his eldest son and grandson. After all, blood is connected. In his opinion, Li Chengdao is the continuation of his life. What he can't do, he can naturally let his grandson help him do it.

Li Cheng, a Taoist, was a little devil. He knew that if he wanted to achieve his goals, he had to please his ancestors first, so he worked very hard to help Li Yuan read the memorials. Although he was young, he had learned some simple government affairs with several teachers, so he sometimes asked questions about the contents of the memorials. Li Yuan also smiled and helped him answer them. The atmosphere between the two grandparents and grandchildren was also very harmonious.

When it was almost noon, the remaining memorials were finally reviewed with the efforts of the grandparents and grandchildren, which made Li Yuan extremely happy. He ordered someone to prepare lunch and asked Li Chengdao to have dinner with him.

Seeing that Li Chengdao was so happy, he was secretly happy at the moment. He kept holding vegetables for his grandfather while eating, which made Li Yuan laugh and praised Li Chengdao for being filial and better than his father and his uncles.

After lunch, Li Yuan rinsed his mouth and lay half on the soft couch, and then he smiled and said to Li Chengdao: "Dao'er, you have been attentive for a long time. If you have anything, just say it. As long as it is not a particularly difficult thing, I can help you!"

"Uh? Grandfather, did you see it?" Li Chengdao was stunned when he heard his grandfather's words. He was about to ask for something, but he didn't expect that his grandfather guessed his thoughts in advance.

"Nonsense, can you hide your little thoughts from your grandfather?" Li Yuan smiled and pointed at Li Chengdao's forehead and said, "He can sweep Zhuxiong at the end of the Sui Dynasty in just a few years. Although he has the help of his two sons, he is the main decision-maker. If he can't even see the idea of ​​his grandson, wouldn't that be a big joke?

Hearing his grandfather's words, Li Chengdao smiled embarrassedly, but then he smiled with a shameless smile: "Since you have seen it, grandson said it straight, actually grandson wants to ask you something..."

As Li Chengdao said, he talked about what he met Li Xiu that day and was impressed by the other party's profound knowledge, and then said again: "The grandson originally wanted to ask his father, so he usually took some time to visit Li Jijiu, and by the way he could ask him some questions in his heart, but his father said that his grandson should focus on his usual studies, so he refused my request."

When Li Chengdao spoke at the end, he also showed a grievance on his face. He really wanted to ask Li Xiu more questions.

Li Yuan was very calm from beginning to end. Even when he heard Li Xiu’s description of Africa and America, there was no strange expression on his face, as if he was listening to something very ordinary. Finally, he slowly spoke: "Daoer, do you really want to ask Li Xiu for advice?"

"Yes, my grandson talked with Li Jijiu for an afternoon and felt that his horizons were wide open. If he could ask for advice from time to time, it would definitely be of great help to his grandson's studies!" Li Chengdao said firmly.

Seeing that his eldest grandson was so persistent, Li Yuan did not answer immediately, but showed a hesitant look, as if he was seriously thinking about the gains and losses of this matter. This also made Li Chengdao next to him very nervous. Whether he could leave the palace often depends on his grandfather's decision.

However, just as Li Yuan was thinking, he suddenly saw an eunuch walking into the hall quickly and then bowed to Li Yuan and reported: "Report to Your Majesty, Princess Pingyang will meet you!"

"Oh? Why is Sanniang coming?" Li Yuan couldn't help but stand up in surprise when he heard the news, and then said happily, "Hurry her in!"

The eunuch agreed and turned to invite Princess Pingyang. Li Yuan walked around the hall happily. He wanted to go to the last Princess Pingyang birthday party, but because of the fact that he really couldn't get rid of his affairs in the court, he could only break his promise. In addition, Princess Pingyang's unhappy marriage made Li Yuan feel guilty for Princess Pingyang. At this time, he was naturally very surprised to see his daughter coming to visit him.

Li Chengdao did not expect his aunt to visit his grandfather at this time, but he was also secretly happy because he knew that his aunt always loved him the most and might speak for him, and his grandfather loved his aunt the most. When he felt soft, he might agree to leave the palace to ask Li Xiu for advice.

It is precisely because of this that when he saw Princess Pingyang stepping into the hall, Li Chengdao immediately greeted him happily and said, "My nephew, please see my aunt!"

"Daoer, are you here too?" Princess Pingyang said in surprise when she saw Li Chengdao.

"Yes, I'll help my grandfather review the memorial!" Li Chengdao said proudly at this time. Then he saw Princess Pingyang holding a box that seemed very heavy. He hurried forward to take it and carried it himself, but he felt a sank in his hand. Finally, he could use both hands to lift it.

"Be careful, don't fall into the box, or yourself." Princess Pingyang wanted to carry it herself, but Li Chengdao Nian was very ambitious and insisted on carrying it herself, so she could only repeatedly remind her that the things in the box would not fall much.

"Don't worry, aunt, I can still lift this weight, I can drive half a stone bow!" Li Chengdao said proudly again. With his age, being able to pull half a stone bow is indeed a great thing.

Seeing that Li Chengdao is so strong, Princess Pingyang couldn't say anything else, and then smiled and saluted Li Yuan and said, "Daughter, pay homage to your father!"

"Sanniang, don't be too polite. Your leg injury has healed?" Li Yuan hadn't seen Princess Pingyang for a while. When he saw her last time, she could only sit on the brocade couch, but now she is walking freely and can't see the injury at all, which also makes him feel very relieved.

"If my father is worried, my daughter's injury is no longer in trouble!" Princess Pingyang also said with a faint smile. In fact, her injury was fine before her birthday. She wanted to tell Li Yuan this good news in person, but unfortunately Li Yuan had something to do that day but couldn't come.

When she said this, Princess Pingyang's eyes swept over the memorials raised high in front of Li Yuan, and frowned slightly and said, "Father, you have bad eyes, why do you have to deal with so many government affairs?"

"Haha, our Tang Dynasty is not very balanced. Natural disasters and man-made disasters occur from time to time, especially this year, the weather is so hot and it is reluctant to rain for a long time. The court is very nervous, so there are naturally more memorials. And this is the result of your elder brother and Pei Xiang and others helping me to share most of the burden." Li Yuan said with a gentle face.

Hearing Li Yuan say this, Princess Pingyang could only sigh helplessly, and then thought of the purpose of today. She walked forward and said, "Father, how is your eye disease? Has it improved during this period?"

"Oh, it's still the same. If Dao'er hadn't helped me read the memorials, I'm afraid I would have been able to review them until now." Li Yuan sighed when he heard this. He was less than 60 years old and his eyes were so presbyopic. I really don't know what he would become in the future?

"Father, my daughter has something here, which may relieve her eye disease!" At this time, Princess Pingyang finally explained the purpose of entering today. Then she reached out to pick up the box in Li Chengdao's hand and placed it on the dragon table in front of Li Yuan.

"Oh? Sanniang, do you really have a solution?" Li Yuan was quite surprised when he heard this. For his eyes, he had also searched all famous doctors in the world to come to the palace to treat him, but all the doctors said that this is one of the symptoms of human aging and there is no cure at all.

"Father, you'll know if you try it!" Princess Pingyang smiled mysteriously at this time, and then gently opened the box to reveal two neatly arranged rows of lenses inside. These lenses were just polished by Li Xiu during this period, and the thickness of each piece was slight difference, because the far-sightedness was also divided into degrees, and he didn't know the degree of Li Yuan's far-sightedness, so he could only try to polish as much as possible for Li Yuan to try one by one.

"This... what is this?" Li Xiu was also surprised to see the lenses in the box. These small circles looked like water jade and medicine jade, but they didn't know what their purpose was?

Princess Pingyang smiled slightly and did not answer. She took out a special glasses from one end of the box. The lenses in the glasses can be taken out. She picked out two smaller lenses from the lenses and put them in, and then whispered: "Father, this is called reading glasses, which are specially designed to relieve your eye disease. If you wear them, you will find its usefulness."

Although Li Yuan was full of doubts, out of trust in his daughter, he still let Princess Pingyang put it on his eyes. When he looked at the things nearby, he suddenly realized that it was a little clearer than before. This also surprised him: "It's really useful. I seem to be able to see the words on the memorial clearly!"

"Father, don't worry, I'll try other lenses again, there must be something that suits you more!" Princess Pingyang smiled. These were all taught by Li Xiu in advance.

Princess Pingyang said as she removed the glasses on Li Yuan's face, then replaced them with other lenses one by one, until she helped Li Yuan find the most suitable lenses. At this time, Li Yuan was also excited to find that after putting on his glasses, he felt extremely clear when he looked at the memorial, as if he was back in his youth.

"Sanniang, this reading glasses are so good. Did Li Xiu think of it? I must have a lot of rewards!" Li Yuan's beard was trembling with excitement, but he still accurately judged that the person who invented this method was Li Xiu. After all, Li Xiu was not only proficient in medical skills, but also invented strange things such as water wheels, so he guessed that Li Xiu invented reading glasses at the first time. (To be continued.)
Chapter completed!