Science and poetry: it is sufficient to conjure up together these two terms of human experience to arouse an idea of opposition in some, an idea of exclusion in others and of suspicion in most. Two methods of perception of the exterior and interior world, at opposite ends of the human mind have produced two languages. They are so far from each other these two languages that have common origin, and after extending their branches to the opposite ends of the earth seem to be able to join together wishing to go beyond.