得鱼忘筌 (déyú-wàngquán) 筌是用来捕鱼的器具。得到了鱼,就忘掉筌。比喻达到目的以后就忘了赖以成功的东西 forget the means by which the end is attained;forget the trap as soon as the fish is caught 筌者所以在鱼,得鱼而忘筌。——《庄子·外物》 成语解释筌:捕鱼用的竹器。捕到了鱼,忘掉了筌。比喻事情成功以后就忘了本来依靠的东西。得鱼忘筌出处《庄子·外物》:“荃者所以在鱼,得鱼而忘筌。”使用例句故目的既达,得鱼忘筌,其手腕之峭紧敏捷又如此。