出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第170页（250字）
心里想的和口里说的并不一致，例口是心非的人，能骗得人一时，却无法骗得一世，终究会被人拆穿，受人鄙弃。
A person can cheat people by saying yes but meaning no for sometime，but not forever．Sooner or later he will be seen through and be scorned by others．