Task: Text Categorization
Input (English): Descartes' First Meditation claims that the obsession over this material is related to a "cerebellaso clouded with black bile. " This substance was at the center of a mania first described in a case study of a man from Saint Germaine who was compelled to defecate standing up, and constantly wore a small pillow on his rear end, who was only cured when his doctor gave him a "severe thrashing. " This material was the namesake of that manic obsession, whose most famous sufferer's condition was documented by the future Pope Pius II and included a fear of being touched and the wearing of protective clothing. Many sufferers of the obsession over this material thought that they were a "urinal. " For 10 points, name this material at the center of a sixteenth-century "delusion" that the French King Charles VI suffered from, in which people thought that they were susceptible to shattering because they were made of it.
Output (English): Social Science