Aristotle was famous for knowing everything. He taught that the brain exists merely to cool the blood and is not involved in the process of thinking. This is true only of certain persons.
Bio: John Bodkin Adams was an Irish general practitioner, convicted fraudster and suspected serial killer. Between 1946 and 1956, more than 160 of his patients died in suspicious circumstances. Of these, 132 left him money or items in their wills.