“自欺欺人”，汉语成语，用自己都无法相信的话或手法来欺骗别人，既欺骗自己，也欺骗别人，常用来形容不肯面对事实。可以翻译为“deceive oneself as well as others或self-deceiving”等。

例句：

你不要用这种伪科学自欺欺人了。

Don't fool yourself as well as others by this kind of pseudoscience.