Analysis of information sources in references of the Wikipedia article "Видалення каменя глупоти" in Ukrainian language version.
There was a popular belief that a so-called "stone of madness" caused idiocy or dementia. To cure this, it was believed necessary to remove a section of the ...
stone of madness.
The logo of the Mind’s Museum is an overturned funnel. It is a reference to a 15th-century painting by Hieronymus Bosch that depicts a doctor using a scalpel to extract an object (the supposed “stone of madness”) from the skull of a patient. The doctor is wearing a funnel as a hat.
