" it is interesting to know that the sort of phenomenon which is recorded subjectively as emotion may not be merely a useless epiphenomenon of nervous action, but may control some essential stage in learning, and in other similar processes. I definitely do not say that it does, but I do say that those psychologists who draw sharp and uncrossable distinctions between man’s emotions and those of other living organisms and the responses of the modern type of automatic mechanisms, should be just as careful in their denials as I should be in my assertions. "

― Norbert Wiener , The Human Use of Human Beings: Cybernetics and Society