stand by the pond and long for fish; stand on the edge of a pool and idly long for fish; cherish illusions ? 是威武，可惜你我手無寸鐵， 還不是～??。 (李六如 《六十年的變遷》 Ⅰ—121)They’re really splendid! Too bad we were not armed like them ourselves and can only stand here and vainly admire them. ? ～，不如歸而結網(wǎng)。(《漢書·禮樂志》) It is better to go back and make a net than to stand by the pond and long for fish.
臨淵羨魚lin yuan xian yu
stand by a pond longing for fish
臨淵羨魚lín yuān xiàn yú
淵：深淵；羨：希望得到。在深水潭邊看到魚很想得到，還不如回去織網(wǎng)。比喻只是空想，不去努力工作，毫無用處。one should take practical steps to achieve one’s aims, cherish illusions, empty wish and hope