Conscious and unconscious experiences do not belong to different compartments of the mind; they form a continuous scale of gradations, of degrees of awareness.
Arthur KoestlerAs modern physics started with the Newtonian revolution, so modern philosophy starts with what one might call the Cartesian Catastrophe. The catastrophe consisted in the splitting up of the world into the realms of matter and mind, and the identification of 'mind' with conscious thinking. The result of this identification was the shallow rationalism of l' esprit Cartesien, and an impoverishment of psychology which it took three centuries to remedy even in part.
Arthur KoestlerI believe that the evidence for telepathy is overwhelming and that it is a part of reality that is above science. Science allows us to glimpse [only] fragments of reality.
Arthur KoestlerThe creativity and pathology of the human mind are, after all, two sides of the same medal coined in the evolutionary mint. The first is responsible for the splendour of our cathedrals, the second for the gargoyles that decorate them to remind us that the world is full of monsters, devils, and succubi.
Arthur Koestler