临渊羡鱼，不如退而结网
línyuānxiànyú,bùrútuìérjiéwǎng
〖Itisbettertoreturnhomeandweavenetthanstandingbywaterandadmiringfishes;oneshouldtakepracticalstepstoachieveone’saims;Itishardtocatchbirdswithanemptyhand;Itisvaintofishwithoutahook,orreadwithoutabook〗比喻空怀壮志,不如实实在在地付诸于行动