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.
Although, itâs mentioned earlier by several Greek philosophers such as, Pythagoras and Empedocles, Iâd say the first to offer a real rationale was Aristotle. His argument was based on observations that certain star patterns that were only observable from certain places on earth and not others.