魚心あれば水心

うおごころあればみずごころ

uogokoroarebamizugokoro

expression

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if you do a favor for somebody, you will get a return favor, if a fish is friendly toward water, water will be kind to the fish too, mutual back-scratching(proverb)

Related Kanji

魚	fish
心	heart, mind, spirit, heart radical (no. 61)
水	water