Abstract

"Our thesis is that, on the whole, great logico-deductive systems of thought can never serve as permanent structures in science, for the following reason: If they are applicable to the world of observation, they must either tend to become useful mathematical calculi on the one hand, or to remain as rigid systems of belief hampering the free development of scientific enquiry." The thesis is developed on the basis of material drawn from the fields of physics, psychology, and parapsychology.