Clifton Fadiman (May 15, 1904- June 20, 1999) was a noted intellectual, author, radio and television personality and nephew of the renowned genius William James Sidis. Clifton Fadiman was never know as "Cliff". In fact he had a particular dislike for the shortened reference to an otherwise name of distinction. His family and close friends did refer to him as "Kip". This somewhat odd nickname was actually given to him by his mother, when Clifton suffered a prolonged bout of the Hiccups at the age of three.