温故知新
おんこちしん
This is a classic four-character idiom (yojijukugo) that literally translates to "warming the old to know the new." Imagine taking an old, cold ember and blowing on it until it glows again, revealing light you hadn't seen before. It embodies the wisdom that by revisiting history, past experiences, or traditional teachings, we gain fresh insights and innovative perspectives for the future. It is a sophisticated, somewhat academic expression often used in formal speeches, essays, or business contexts to advocate for the value of tradition. It suggests that progress is not about discarding the past, but about rediscovering its relevance. You will frequently hear it when discussing heritage, educational philosophies, or corporate legacies.
In conversation
Discussing a project strategy
今回のプロジェクトは、昔の手法を参考にしてみようと思うんだ。
I think we should refer to old methods for this project.
なるほど、温故知新だね。いいアプローチだと思うよ。
I see, 'onkochishin.' I think that's a good approach.
Used to validate the idea of looking at past data for new solutions.
A teacher talking to students
歴史を学ぶことは、ただの暗記ではありません。温故知新の精神が大切です。
Studying history isn't just about memorization. The spirit of 'onkochishin' is important.
過去から新しい発見をするということですね。
So it means finding something new from the past, right?
Commonly used in academic or moral instruction.
Examples
温故知新の精神で新しいサービスを開発する。
おんこちしんのせいしんであたらしいさーびすをかいはつする。
We are developing a new service with the spirit of 'onkochishin'.
古い技術を現代風にアレンジする、まさに温故知新だ。
ふるいぎじゅつをげんだいふうにあれんじする、まさにおんこちしんだ。
Arranging old technology into a modern style—it truly is 'onkochishin'.
温故知新の教えに従い、先人の知恵を現代のビジネスに活かす。
おんこちしんのおしえにしたがい、せんじんのちえをげんだいのびじねすにいかす。
Following the teaching of 'onkochishin', we apply the wisdom of our predecessors to modern business.
