| 魚心あれば水心あり;魚心有れば水心有り | [うおこころあればみずこころあり, uokokoroarebamizukokoroari] (exp) (id) (See 魚心あれば水心) 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; you scratch my back and I'll scratch yours [Add to Longdo] |