What's the difference between these two Chinese idioms?
青出于蓝 is about the student surpassing the teacher, while 温故知新 is about learning new things from old knowledge. Surpassing vs building upon.
qīng chū yú lán
“Student surpasses master”
Literally: Blue comes from indigo plant
Xunzi opens his chapter on learning with it: 青，取之于蓝，而青于蓝 — blue (青) is taken from (出于) the indigo plant (蓝), and is bluer than the plant. The point is the student's, not the teacher's: nothing is being criticised, and the dye is better precisely because the plant existed. Common speech runs it as 青出...
Example: The young researcher's innovations built upon and ultimately surpassed her mentor's original theories
Chinese: 这位年轻研究员的创新建立在导师理论基础之上，最终超越了原有理论
wēn gù zhī xīn
“Learn new through studying old”
Literally: Review old know new
Confucius, in the Analects: 温故而知新，可以为师矣 — one who warms (温) the old (故) and thereby knows (知) the new (新) is fit to be a teacher. 温 is the word for reheating food, so the image is of returning to what you already have rather than acquiring more. The claim is specific and quite demanding: review alon...
Example: By reviewing past projects, she found solutions for current challenges
Chinese: 通过回顾过去的项目，她找到了解决当前挑战的方法
| Aspect | 青出于蓝 | 温故知新 |
|---|---|---|
| Pinyin | qīng chū yú lán | wēn gù zhī xīn |
| Literal Meaning | Blue comes from indigo plant | Review old know new |
| Used For | Student surpasses master | Learn new through studying old |
| Theme | Success & Perseverance | Wisdom & Learning |
| Example | The young researcher's innovations built upon and ultimately surpassed her mentor's original theories | By reviewing past projects, she found solutions for current challenges |
青出于蓝 is about the student surpassing the teacher, while 温故知新 is about learning new things from old knowledge. Surpassing vs building upon.
青出于蓝 literally means "Blue comes from indigo plant" and is used to describe "Student surpasses master." Xunzi opens his chapter on learning with it: 青，取之于蓝，而青于蓝 — blue (青) is taken from (出于) the indigo plant (蓝), and is bluer than the plant. The point is the student's, not the teacher's: nothing is bein
温故知新 literally means "Review old know new" and is used to describe "Learn new through studying old." Confucius, in the Analects: 温故而知新，可以为师矣 — one who warms (温) the old (故) and thereby knows (知) the new (新) is fit to be a teacher. 温 is the word for reheating food, so the image is of returning to what
Use 青出于蓝 when you want to emphasize "Student surpasses master." Use 温故知新 when you want to emphasize "Learn new through studying old." 青出于蓝 is about the student surpassing the teacher, while 温故知新 is about learning new things from old knowledge. Surpassing vs building upon.
笨鸟先飞 (clumsy bird flies first) celebrates hard work compensating for lack of talent, while 青出于蓝 (blue surpasses indigo) celebrates natural talent exceeding its origins. Effort-based vs talent-based success.
融会贯通 means merging all knowledge into complete mastery, while 温故知新 means reviewing the old to discover the new. Total synthesis vs incremental discovery.