"Gold does not change" refers to ink. As the old saying goes, "If you use it every day, you will only get half a point at the age of one, and you will not change it after using it." Good ink is hand-made, which combines plastic arts and ink making technology. There is a saying that it is difficult to find a famous ink without changing Zijin. Therefore, the ancients called ink "gold does not change" and described ink as valuable.
Four Treasures of the Study's "Pen"
Pens are also called milli, including sheep milli (made of wool), wolf milli (made of wolf hair) and doubled both brush (made of wool and rabbit hair).
According to Wang Xizhi's Bi Jing, in the Han Dynasty, governors, counties and countries all over the world competed to write the plaque on the Hongdu Gate in Luoyang with rabbit brush. As a result, only Zhao Rabbit's brush was selected. Zhongshan belongs to Zhao, so it is called Zhongshan people, and "Ying" refers to the conical brush. Because it is made of bamboo tube, it should be dipped in ink when it is used, so it is named Zhongshujun, Guanchenghou, Cao Mo Dutong, Mojun King, Cat Chasing History and so on.
Four Treasures of the Study's "Ink"
Ink, besides being called Hsuanchan, has other aliases such as Song Yanhou, Long Bin and Long Xiangji.
There is a story in Feng Zhi's Miscellanies of Yunxian in Tang Dynasty: there is ink on the imperial case of Xuanzong in Tang Dynasty. One day, Emperor Xuanzong of the Tang Dynasty saw a little Taoist walking like a fly in the ink incense and scolded him. Long live the little Taoist priest, calling him an ink spirit. Everyone who has it in the world has Long Bin on their ink, so Long Bin has become synonymous with ink. The imperial ink of Emperor Xuanzong of Tang Dynasty was made of pine smoke, musk and cloves. Therefore, the imperial ink of Emperor Xuanzong of Tang Dynasty is also called "Dragon Fragrant".
In ancient times, pine smoke was used as ink, and high-quality spices were added. Therefore, the ancients nicknamed it Songyanhou, the messenger of black pine, the satrap of Xuanxiang, and the Pingzhang incident in Mizhou County.
Four Treasures of the Study
Paper, also known as "Mr. Qi". In ancient times, Huiji (now Shaoxing, Zhejiang) produced tribute paper, and the bark of Broussonetia papyrifera was the first-class raw material for papermaking. Chu and Broussonetia papyrifera were similar, so some people took "Chu" as the paper surname from people's surnames and called it the white of Huiji Chu.
In ancient times, paper was also called "smooth square wadding", which is a metaphor for the smoothness and whiteness of paper and is very unique. Because the paper is flexible and can be cut at will, it is better to be white, so sealing paper is a good choice, such as serving, museum history, white state history and military strategy.
Four Treasures of the Study Yantai
The inkstone is made of pottery, porcelain and stone. During the Sui and Tang Dynasties, pottery inkstone prevailed in the world, among which Zhou Guo (Hongjia County in Han Dynasty, now Lingbao in Henan Province) was the most famous, and the middle depression of inkstone platform was called Hongjia pottery inkstone.
As a container for storing ink, inkstone is hard in texture. The ancients named it Jimo Hou, Lishi Hou, Iron Face Shangshu, Jimo Military Commander and so on.