As a philosophy expert, I can tell you that the concept of "bad faith" is a central theme in the existentialist philosophy of Jean-Paul Sartre. In his work "Being and Nothingness," Sartre describes bad faith as a way in which humans can act inauthentically, denying their own freedom and responsibility. This happens when individuals deceive themselves into thinking they are not free to choose their actions or that they are constrained by external factors when, in fact, they are not.

"Bad faith" is a self-deceptive state where one is not true to oneself. It involves choosing to ignore or deny the inherent freedom that comes with being human, and instead, embracing a role or identity that is not genuinely chosen but rather imposed by society or one's own self-deception.

Here's the translation in Chinese:

作为哲学领域的专家，我可以告诉你，“坏信念”是存在主义哲学家让-保罗·萨特（Jean-Paul Sartre）的核心主题之一。在他的著作《存在与虚无》中，萨特描述了坏信念是人们可以不真实地行动的一种方式，否认他们自己的自由和责任。当个体欺骗自己，认为自己没有选择行动的自由，或者认为自己受到外部因素的限制时，尽管实际上并非如此，就会发生这种情况。

坏信念是一种自我欺骗的状态，其中一个人对自己不真实。它涉及选择忽视或否认作为人类固有的自由，并且相反，接受一个并非真正选择而是由社会或自己的自我欺骗所强加的角色或身份。

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Bad faith (from French mauvaise foi) is a philosophical concept utilized by existentialist philosophers Simone de Beauvoir and Jean-Paul Sartre to describe the phenomenon in which human beings, under pressure from social forces, adopt false values and disown their innate freedom, hence acting inauthentically.read more >>