所以 suǒyǐ

1. suǒyǐ conjunction therefore; as a result; so
   Domain: Modern Chinese 现代汉语 , Subdomain: Function Words , Concept: Correlative 关联词
   Notes: This conjunction is often used as a connecting word in the main clause of subordinate complex sentences. It is often used in the pattern 因为…，所以… to express cause and effect (CC-CEDICT '所以'; Guoyu '所以'; Sun 2006, loc. 2053).
2. suǒyǐ phrase that by which
   Domain: Literary Chinese 文言文
   Notes: In Literary Chinese this phrase is composed of two characters, in contrast with the single word 'therefore' in modern Chinese (Guoyu '所以' 2; Pulleyblank 1995, p. 50).
3. suǒyǐ pronoun how; why
   Domain: Literary Chinese 文言文
   Notes: In the sense of 何以 (CC-CEDICT '所以'; Guoyu '所以' 3)

Contained in

• 所以然 the reason why
• 知其然而不知其所以然 to know that it is so but not why it is so
• 不知所以 to not know the reason; to not know what to do
• 忘乎所以 to get carried away; to forget oneself
• 之所以 the reason why

Word is mentioned most frequently in

Truncated for common words

• 《中庸章句》 Commentary on Doctrine of the Mean Commentaries on the Four Books by Zhu Xi 朱熹四書章句集注 — count: 57
• 周語下 Discourses of Zhou III Guoyu 國語 — count: 42
• 卷十七 天地之行第七十八 威德所生第七十九 如天之為第八十 天地陰陽第八十一 天道施第八十二　Scroll 17 Luxuriant Dew of the Spring and Autumn Annals 春秋繁露 — count: 40
• 卷二十二 志第二: 禮儀二 Volume 22 Treatises 2: Rites 2 Old Book of Tang 舊唐書 — count: 36
• 《扁鵲倉公列傳》 Biographies of Bian Que and the Duke of Cang Records of the Grand Historian 史記 — count: 32
• 卷二十一　要略 Chapter 21: Summary Huainanzi 淮南子 — count: 31
• 周語中 Discourses of Zhou II Guoyu 國語 — count: 28
• 《中庸》 The State of Equilibrium and Harmony, also known as the Doctrine of the Mean The Book of Rites 禮記 — count: 28
• 禮論篇第十九 Chapter 19: Discussion on Ceremony Xunzi 荀子 — count: 26
• 昭公 Lord Zhao The Commentary of Zuo on the Spring and Autumn Annals 春秋左氏傳 — count: 26