About Deaf-Blindness > What is Deaf-Blindness. Deaf-blindness is a low incidence disability and within this very small group of children there is great variability. Many children who are deaf-blind have some usable vision and/or hearing. The majority of children who are deaf-blind also have additional physical, medical and/or cognitive problems.
Introduction-David Hume. The Philosopher David Hume is famous for making us realize that until we know the Necessary Connection / cause of things then all human knowledge is uncertain, merely a habit of thinking based upon repeated observation (induction), and which depends upon the future being like the past.
Michael Van Duisen. Working with the limited scientific knowledge they had, the ancient Greek and Roman civilizations came up with a number of theories about the human body. While some were correct, most were not. As a matter of fact, some doctors, philosophers, and thinkers got it hilariously wrong.ristotle believed the heart was the center of knowledge and the source of the sensations in the human body, rather than the brain, and he had an interesting theory about the brain. He felt that the brain was merely a cooling organ for the heart and an area for âspiritâ to pool.