Entry · September 22, 2026

温故知新

温故知新 (Onko Chishin): Learning from the past to gain new insights and wisdom for the future.

An illustration of the yojijukugo 温故知新 (Onko Chishin) showing a student at a desk, thinking, with two thought-bubble clouds branching off him. The left cloud, labeled 過去の知識(温故) 'knowledge of the past,' holds a stack of books (歴史 'history', 伝統 'tradition', 先人の知恵 'wisdom of predecessors') and a scroll; a green arrow points from it toward the right cloud, labeled 新しい発見(知新) 'new discovery,' which holds a glowing lightbulb, a sprouting plant, and a laptop reading よりよい未来へ 'toward a better future.' Stacks of books beside the student read 昔の考え方 'old ways of thinking', 成功例 'examples of success', and 失敗からの教訓 'lessons from failure' on the left, and 新しいアイデア 'new ideas', 新しい価値 'new value', and よりよい社会 'a better society' on the right.
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