教學相長

Chinese

		teach; teaching; religion	learn; study; science learn; study; science; ‑ology	each other; appearance; portrait each other; appearance; portrait; picture; one another; mutually	long; length; forever long; length; forever; always; constantly; chief; head; elder; to grow; to develop
trad. (教學相長)		教	學	相	長
simp. (教学相长)		教	学	相	长

Etymology

From the Book of Rites, Book 18 (《禮記·學記》):

故學然後知不足，教然後知困。知不足，然後能自反也；知困，然後能自強也，故曰：教學相長也。 [Classical Chinese, trad.]

故学然后知不足，教然后知困。知不足，然后能自反也；知困，然后能自强也，故曰：教学相长也。 [Classical Chinese, simp.]

From: The Book of Rites, c. 4^th – 2^nd century BCE, translated based on James Legge's version

Gù xué ránhòu zhī bùzú, jiào ránhòu zhī kùn. Zhī bùzú, ránhòu néng zìfǎn yě; zhī kùn, ránhòu néng zìqiáng yě, gù yuē: jiào xué xiàng cháng yě. [Pinyin]

Therefore when he learns, one knows his own deficiencies; when he teaches, he knows the difficulties of learning. After he knows his deficiencies, one is able to turn round and examine himself; after he knows the difficulties, he is able to stimulate himself to effort. Hence it is said, "Teaching and learning help each other."

Pronunciation

Mandarin
(Pinyin): jiàoxuéxiāngzhǎng

(Zhuyin): ㄐㄧㄠˋ ㄒㄩㄝˊ ㄒㄧㄤㄓㄤˇ
Cantonese (Jyutping): gaau³ hok⁶ soeng¹ zoeng²

Mandarin
- (Standard Chinese)⁺
  - Hanyu Pinyin: jiàoxuéxiāngzhǎng
  - Zhuyin: ㄐㄧㄠˋ ㄒㄩㄝˊ ㄒㄧㄤㄓㄤˇ
  - Tongyong Pinyin: jiàosyuésiangjhǎng
  - Wade–Giles: chiao⁴-hsüeh²-hsiang¹-chang³
  - Yale: jyàu-sywé-syāng-jǎng
  - Gwoyeu Romatzyh: jiawshyueshiangjaang
  - Palladius: цзяосюэсянчжан (czjaosjuesjančžan)
  - Sinological IPA ^(key): /t͡ɕi̯ɑʊ̯⁵¹ ɕy̯ɛ³⁵ ɕi̯ɑŋ⁵⁵ ʈ͡ʂɑŋ²¹⁴⁻²¹⁽⁴⁾/
Cantonese
- (Standard Cantonese, Guangzhou–Hong Kong)⁺
  - Jyutping: gaau³ hok⁶ soeng¹ zoeng²
  - Yale: gaau hohk sēung jéung
  - Cantonese Pinyin: gaau³ hok⁹ soeng¹ dzoeng²
  - Guangdong Romanization: gao³ hog⁶ sêng¹ zêng²
  - Sinological IPA ^(key): /kaːu̯³³ hɔːk̚² sœːŋ⁵⁵ t͡sœːŋ³⁵/

Idiom

教學相長

both the teacher and the student can learn from each other and grow together