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| Four Treasures of the Study | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chinese name | |||||||||||||||||
| Traditional Chinese | 文房四寶 | ||||||||||||||||
| Simplified Chinese | 文房四宝 | ||||||||||||||||
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| Alternative Chinese name | |||||||||||||||||
| Traditional Chinese | 紙墨筆硯 | ||||||||||||||||
| Simplified Chinese | 纸墨笔砚 | ||||||||||||||||
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| Vietnamese name | |||||||||||||||||
| Vietnamese alphabet | văn phòng tứ bảo | ||||||||||||||||
| Chữ Hán | 文房四寶 | ||||||||||||||||
| Korean name | |||||||||||||||||
| Hangul | 문방사우 | ||||||||||||||||
| Hanja | 文房四友 | ||||||||||||||||
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| Japanese name | |||||||||||||||||
| Kanji | 文房四宝 | ||||||||||||||||
| Kana | ぶんぼうしほう | ||||||||||||||||
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Four Treasures of the Study is an expression used to denote thebrush,ink,paper andink stone used inChinese calligraphy and spread into otherEast Asian[1][2][3]calligraphic traditions. The name appears to originate in the time of theSouthern and Northern Dynasties (420–589 AD).[4]
The Four Treasures is expressed in afour-word couplet: "The four treasures of the study: Brush, Ink, Paper, Inkstone." (Chinese:文房四寶:筆、墨、紙、硯;pinyin:Wén fáng sì bǎo: bǐ, mò, zhǐ, yàn)[4][5] In the couplet mentioned, each of the Treasures is referred to by a singleepithet; however, each of these are usually known by a compound name (i.e.The Brush:Chinese:毛筆;pinyin:máobǐ, literally "hair/brush pencil). The individual treasures have a "treasured" form, each being produced in certain areas of China as a speciality for those scholars who would use them.

The brush (simplified Chinese:毛笔;traditional Chinese:毛筆;pinyin:máo bǐ, Korean: 붓but, Vietnamese: 筆bút, Japanese: 筆fude, Ryukyuan:fudi) is the oldest of the Four Treasures, with archaeological evidence dating toZhou dynasty (1045 BC–256 BC) illustrations on ancient bones. The oldest brush so far dates toHan dynasty (202 BC–220 AD). Brushes are generally made from animal hair, or —in certain situations—the first hair taken from a baby's head (said to bring good luck in theImperial examinations). Brush handles are commonly constructed frombamboo, but special brushes may have handles ofsandalwood,jade, carved bone/ivory, or other precious materials.
Modern brushes are primarily white goat hair (羊毫), black rabbit hair (紫毫), yellow weasel hair (黄鼠毫/狼毫), or a combination mix. Ancient brushes, and some of the more valuable ones available on the market may be made with the hair of any number of animals. Each type of hair has a specific ink capacity, giving distinct brush strokes. Different brushes are used for different styles of calligraphy and writing.
Brushes are classed as soft (軟毫), mixed (兼毫) or hard (硬毫). Hair is laboriously sorted by softness, hardness, thickness, & length, then bundled for specific uses. The most famous and highly prized brushes are a mix of yellow weasel, goat and rabbit hair, known as Húbǐ (湖筆); highly prized since theMing dynasty (late 14th century) they are currently made inShanlian (善琏), a town in theNanxun District,prefecture-level city ofHuzhou, ofZhejiang province (浙江).

The Inkstick (Chinese:墨;pinyin:mòⓘ, Korean: 묵muk, Vietnamese: 墨mực, Japanese: 墨sumi, Ryukyuan:shimi) is an artificial ink developed during theHan dynasty. These first writing inks were based on naturally occurring minerals likegraphite andvermilion; earliest inks were probably liquids and not preserved. Modern inksticks are generally made of soots from one of three sources, includinglacquersoot,pine soot, andoil soot. Soots are collected, then mixed with glue. Higher quality inksticks also use powdered spices and herbs, adding to aroma and providing some protection to the ink itself. The glue, soot, and spice mixture is then pressed into shape and allowed to dry. This process can take 6 weeks, depending on an inkstick's dimensions.
The best ink sticks are fine grained and have a light, slightly ringing sound when tapped. They are often decorated with poems, calligraphy, orbas relief, and painted. These particular articles are highly collectable, and often acquired like stamps. The inksticks in highest regard, known as Huīmò (徽墨), containmusk,borneol and other preciousaromatics ofChinese medicine. They are still produced today inShexian (歙县) inAnhui province (安徽).

Paper (simplified Chinese:纸;traditional Chinese:紙; Pinyin:zhǐⓘ, Korean: 종이jong'i, Vietnamese: 絏giấy, Japanese: 紙kami) was first developed in China in the first decade of 100 AD. Previous to its invention,bamboo slips and silks were used for writing material. Several methods of paper production developed over the centuries in China. However, the paper which was considered of highest value was that of the Jingxian (泾县) in Anhui province.
This particular form of paper, known as Xuānzhǐ (宣紙), is soft, fine-textured, moth resistant, has a high tensile strength, and remarkable longevity for such a product – so much so that it has a reputation for lasting "1,000 years". The quality of the paper depends on the processing methods used to produce it. Paper may be unprocessed, half processed or processed. The processing determines how well ink or paint is absorbed into the fibre of the paper, as well as the stiffness of the paper itself. Unprocessed papers are very absorbent and quite malleable, whereas processed papers are far more resistant to absorption and are stiffer.
The inkstone (Chinese:simplified Chinese:砚;traditional Chinese:硯; Pinyin:yànⓘ, Korean: 벼루byeoru, Vietnamese: 硯nghiên, Japanese: 硯suzuri) is used to grind the ink stick into powder. This powder is then mixed with water in a well in the inkstone in order to produce usable ink for calligraphy. The most ideal water for use in ink is slightly salty. Ink was first prepared using a mortar and pestle, but with the advent of inksticks this method slowly vanished. The stone used is generally of a relatively fine whetstone type.
The earliest known inkstones date back to theHan dynasty. The production of inkstones reached its zenith in theTang andSong dynasties with inkstones becoming extremely intricate works of art. The most highly sought-after inkstones originated in four locations in China. Duanshi stones (端石硯) from Duanxi inGuangdong, She stones (歙硯) fromShexian inAnhui,Taohe stones (洮河硯) from theTao River in SouthGansu and Chengni ceramic stones (澄泥硯) which are manufactured by a process which is said to have been developed inLuoyang inHenan.
Classical scholars had more than just the Four treasures in their studies. The other "Treasures" include thebrush-holder (笔架), brush-hanger (笔挂),paperweights (镇纸), the brush-rinsing pot (笔洗), and theseal (圖章) and seal-ink (印泥).
For painting,Chinese pigments are also used.