得鱼忘筌[ dé yú wàng quán ]

⒈ 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。例筌者所以在鱼，得鱼而忘筌。——《庄子·外物》英forget the means by which the end is attained; forget the trap as soon as the fish is caught;

⒈ 见“得鱼忘荃”。