The "illness" in question is the bewitchment of intelligence by language.

问题之中的“疾病”就是通过语言所产生的智力魔咒。

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Fumigating the victims was considered necessary to cure fox bewitchment. '9.

烟熏这个受害者，被认为是治疗狐魅的必须。

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Philosophy is a battle against the bewitchment of our intelligence by means of language.

哲学是我们借助于语言对我们智力巫术的一场战斗。

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In some countries, traditional beliefs about the causes of the condition, including bewitchment, spiritual causes and curses, lead to stigma and increase the chance that a person with epilepsy will not get the treatment they need.

BBC: Epilepsy 'is a global health problem'