""It was sheer chance that I encountered David Bohm's writing in 1958 ... I knew nothing about him. What struck me about his work and prompted my initial letter was his underlying effort to seek for some larger sense of reality, which seemed a very humanized search."" - Charles Biederman, from the foreword of the book This book marks the beginning of a four thousand page correspondence between Charles Biederman, founder of Constructivism in the 1930's, and David Bohm the prestigious physicist known for his interpretation of quantum theory. Available for the first time, w