Korean Four-Character Idioms
온고지신
溫故知新
Word for word
“review the old, learn the new”
What it means
Learning new things by studying the past.
When you'd use it
Talking about tradition inspiring something modern.
Example
한옥을 현대식으로 고친 이 카페는 온고지신의 좋은 예다.This café, a hanok remodeled in a modern way, is a great example of learning from the old.