The source or beginning of a stream; used to describe the root cause or origin of things like traditions, academic schools, or history

extremely deep water; a dangerous, difficult, or evil situation or state; a state of great misery or ruin

broad and deep; knowledgeable; profound (used to describe someone's scholarship or knowledge)

Li Yuan (566-635), the founder and first emperor of the Tang dynasty, posthumously known as [[唐高祖|唐高祖|tang2 gao1 zu3]]

Longquan, a county-level city in Zhejiang Province; also refers to a legendary sword named after the location

A famous poet and writer of the Eastern Jin Dynasty (c. 365-427), also known as [[陶潜|陶潛|tao2 qian2]], famous for his nature poetry and the story of the utopian [[桃花源|桃花源|tao2 hua1 yuan2]]

Liu Yuan (died 310), a Xiongnu leader and founder of the Han state (known in history as Former Han or Han Zhao) during the Sixteen Kingdoms period. He rose to power during the War of the Eight Princes in the Western Jin dynasty; posthumously known as Emperor Guangwen with the temple name [[高祖|高祖|gao1 zu3]]

(idiom) an extremely deep place or abyss

General of the late Eastern Han dynasty who served under the warlord Cao Cao and was defeated at the Battle of Mount Dingjun in 219 AD

abyss; deep chasm; a bottomless pit or extremely deep pool of water

To stand on the edge of a pond and long for the fish; suggests that it is better to take practical steps than to indulge in wishful thinking.

A library pavilion located in the Forbidden City in Beijing; built in 1775 during the Qing Dynasty specifically to house the first copy of the [[四库全书|四庫全書|si4 ku4 quan2 shu1]].

Yan Yuan (521-481 BC), a disciple of [[孔子|孔子|kong3 zi3]] noted for his intelligence and moral character; also known as [[颜回|顏回|yan2 hui2]]

Inherited family scholarship or skills; specifically used to describe deep knowledge or craftsmanship passed down through generations within a family.

(idiom) as if standing on the edge of a deep pit; used to describe being extremely cautious or feeling very anxious when handling a matter

the difference between heaven and the deep abyss; a vast contrast like night and day

A place where people or things gather; a haunt, hotbed, or den. Literally refers to deep water where fish congregate and marshes where animals gather.

a Japanese surname

Obuchi Keizo (1937-2000), Japanese politician who served as prime minister from 1998 to 2000

sinusitis; nasal infection or inflammation in traditional Chinese medicine

(literary) high sky and deep abyss; a vast difference between two things, as if they are poles apart

Peace treaty signed in 1005 between the Northern Song and the Liao dynasty at Chanyuan, Henan. The agreement established long-term peace between the two powers, involving annual payments of silver and silk from the Song to the Liao.

Literally "to drive fish into deep waters for the otter"; used to describe a ruler driving people into the arms of the enemy or more generally to push away those who should be allies through poor methods.

Little drops of water make a deep pool; a metaphor for how small things accumulate to achieve great results or for success through persistence; also see [[积少成多|積少成多|ji1 shao3 cheng2 duo1]]

as different as the heavens and the deep; a world of difference between two things; extremely disparate

(literary) the legendary place where the sun sets; the abyss of the setting sun

vast and profound; of great depth and breadth (of character, knowledge, or influence)

(idiom) no less than the distance between heaven and the abyss; widely different; the gap could not be bigger

(idiom) to be extremely cautious and fearful of making a mistake, as if standing on the edge of an abyss or walking on thin ice

It is better to go home and weave a net than to stand by the pond longing for fish; one should take practical action instead of just wishing for success.

Literally meaning to hold someone on one's knees when liked and push them into an abyss when disliked; used to describe a person who is fickle or inconsistent in their love and hate, or who appoints and dismisses people based on personal whim.

honest and sincere with deep foresight; used to describe someone with solid character and profound thoughts

the ninth point along the Lung Meridian of Hand-Taiyin, located on the transverse crease of the wrist

(idiom) to be extremely cautious and on guard, as if standing at the edge of a deep abyss or walking on thin ice; to proceed with extreme caution and apprehension

to have broad and profound knowledge; extremely well-learned

to have profound knowledge and broad learning; possessing vast scholarship

To stand tall like a mountain and be deep like a pool; describes someone with noble character and a steady, dignified presence.

comprehensive encyclopedia of literary references compiled by imperial decree during the Qing Dynasty, completed in 1710

(literary) describes a person who has deep or insightful knowledge but remains humble and open-minded

deep valley; deep ravine

profound and extensive; rich and variegated in content or knowledge

broad and extensive, especially regarding knowledge or learning

deep springs; a deep fountain

profound and vast; (literary) deep and broad

(literary) deep pool and vast ocean; used to describe something profound and extensive, or a place where many things or talents gather

profound; deep and extensive (of knowledge, scholarship, etc.); erudite

(literary) deep and profound; peaceful and still

(idiom) to have a serene yet formidable demeanor; to have a commanding presence, literally "deep as a pool and still as a mountain"