Robert Burton,
The Anatomy of Melancholy
“ Faventinus, “a cause of dotage, and produceth milder symptoms: if hot, they are rash, raving mad, or inclining to it.” If the brain be hot, the animal spirits are hot; much madness follows, with violent actions: if cold, fatuity and sottishness, [1072] Capivaccius. [1073] “The colour of this mixture varies likewise according to the mixture, be it hot or cold; 'tis sometimes black, sometimes not,” Altomarus. The same [1074] Melanelius proves out of Galen; and Hippocrates in his Book of Melancholy (if at least it be his) , giving instance in a burning coal, “which when it is hot, shines ”
