“Physicians have marked off a portion of their domain as psychosomatic medicine, thus giving the public the idea that whereas some diseases are altogether events of the soma or body, a few others regrettably stem from the psyche or mind. But no doctor has yet been found who ever saw a patient walk in as a free soma without a psyche, or vice versa. These simplifying doctrines suit our age, which seeks formulas for classification and control, faced as it is with a mass of men in unmanageable numbers and irreconcilable states of mind. Brainwashing, reconditioning by drugs or surgery, or in any other way forcibly manipulating behavior go with the theory of mechanical causation; each supports the other.” (Jacques Barzun, A Stroll with William James)