集腋成裘 (jíyè-chéngqiú)

1. 集積許多狐貍的腋毛而成為裘衣。比喻集眾資以成一事 many a little makes a mickle;many little drops of water make an ocean;the finest fragments of fox fur,sewn together,will make a robe;every little makes a mickle
   • 他這會就去同人家商量,想趁此機(jī)會,捐個知縣班,果然一齊應(yīng)允,也有二百的,也有一百的,也有五十的,居然集腋成裘,立刻到捐局里,填了部照出來。——《官場現(xiàn)形記》