“So science seeks, as far as it might, to penetrate the mystery of the world. And ever so gradually scientists are beginning to become comfortable embracing multiple models. Physicists are no longer disheartened to look at light as both a particle and a wave. As for psychology, models abound: the biological, the psychological, the psychobiological, the sociological, the sociobiological, the Freudian, the rational-emotive, the behavioral, the existential, and so on.

“And while science needs those innovators who will champion a single new model as the most advanced understanding, the patient who seeks to be understood as wholly as possible would be well advised to seek a therapist capable of approaching the mystery of the human soul from all angles.”

— from People of the Lie: The Hope for Healing Human Evil by M. Scott Peck, M.D.