Psychology as a Science of the Soul: Evangelos Christou's The Logos of the Soul (1963).

After Evangelos Christou (1923-1956) studied philosophy at King's College, Cambridge, with Wittgenstein and others, he earned a doctorate at the Jung Institute in Zürich. He then returned home to Alexandria, near which he died in a car crash. The Logos of the Soul, published posthumously, argued for a psychology that would be neither a natural scientific psychology, devoted to causal analyses, nor a philosophical discipline that analysed mental events. Psychology would be an autonomous science of the soul, an unknown distinct from body and mind. Science deals with bodies and behaviours; philosophy with the mental concepts and acts. Psychology deals with "psychological experience". Dreams and fantasies can be sources of psychological experience, but so can perceptual acts and mental acts. Meaning occurs when something encounters an ego or self in a psychological experience. Observation in psychology is participant observation, akin to witnessing of a drama. Psychological methods, such as psychotherapy, are both means of discovery and means of becoming. Christou's work brought together Jung's analytical psychology and mid-century British philosophy in order to stake out the ground for psychology that would be an empirical analysis of psychological experience and a logical analysis of the concepts used in that psychology.