Psychoanalysis: a relatively dark view of human nature, one that assumes we have. Behaviourist: adopted much more of a neutral view of behavior, tried to be morally. Human need is an invariant, something that characterizes all people and does not vary meaningfully from one person to the next. Humanism emerges in the 20 century as the third organizing force in north american psychology. Key figure in humanistic tradition and the originator of humanistic approach to psychotherapy is carl. Rogers was trained as a psychotherapist, also offered a theory of personality. Carl rogers was convinced at the heart of things, there was a singular motivation underlying all human behavior, to actualize, maintain, and enhance the experience organism. Believed inside each of us is a true self, the person we are intended to become, and will realize that true person and are in the process of becoming the person we are meant to be.