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万代不易 (bandaifueki) Japanese meaning: eternal | Kotomora
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せつ
理り
は
万ばん
代だい
不ふ
易えき
で
ある
。
The laws of nature are eternal and unchanging.
This teaching is an eternal truth.
Kanji 代 substitute, change, convert Related words 永えい 遠えん 永遠 is a common word for 'eternity', while 万代不易 is a formal, literary yojijukugo emphasizing unchanging permanence.
不ふ 変へん 不変 means 'unchanging' in a general sense, whereas 万代不易 adds the nuance of 'for all ages' or 'eternally'.
Etymology A yojijukugo composed of 万代 (ban-dai, 'thousands of generations, eternity') and 不易 (fu-eki, 'unchanging'). The exact historical origin is uncertain, but it follows classical Chinese-derived patterns for expressing eternal constancy.
