From Ader, R. (1980). Presidential Address - Psychosomatic and psychoimmunologic research. Psychosomatic Medicine, 42(3), 307-321.
"The biomedical scientist, operating within the conceptual and technical constrains imposed by the disciplinary boundaries of a reductionist philosophy, attempts to control or minimize (or ignore) variability. For the psychosomaticist, such variability is the starting point of his research; it defines the operation of variables with which to be concerned." (p. 307)