“We all still show too little respect for nature, which in Leonardo’s deep words recalling Hamlet’s speech “is full of infinite reasons which never appeared in experience.” Every one of us human beings corresponds to one of the infinite experiments in which these “reasons of nature” force themselves into experience.”

“We all still show too little respect for nature, which in Leonardo’s deep words recalling Hamlet’s speech “is full of infinite reasons which never appeared in experience.” Every one of us human beings corresponds to one of the infinite experiments in which these “reasons of nature” force themselves into experience.”

— Sigmund Freud