林肯曾经有一句名言:你可以一时忽悠所有人,也可以永远忽悠某些人,但不可能永远忽悠所有人。You can fool all the people some of the time, and some of the people all the time, but you cannot fool all the people all the time.林肯的话实际上道出了舆论控制和宣传洗脑的限度。