光說不練 [ㄍㄨㄤ ㄕㄨㄛ ㄅㄨˋ ㄌㄧㄢˋ; guang1 shuo1 bu4 lian4] all talk and no action (idiom) to preach what one does not practice same as 光說不做[ㄍㄨㄤ ㄕㄨㄛ ㄅㄨˋ ㄗㄨㄛˋ; guang1 shuo1 bu4 zuo4] ◄ ►