expression
even a fool may sometimes come up with a good idea
Proverb meaning that even a foolish person can occasionally have a good insight or give useful advice. Often used to express humility about one's own suggestion.
See also: 愚者一得
愚者も千慮に一得というから、私の意見も聞いてください。
They say even a fool may sometimes hit upon a good idea, so please hear my opinion.
A shorter form of the same proverb, literally 'a fool's one gain,' used in similar contexts.
From Chinese classical literature; the full phrase is often traced to the Records of the Grand Historian (Shiji). The idea is that even a fool, after much thought, may occasionally have a worthwhile insight.