I am convinced of the truth of Freud’s work, but as I teach the Freudian movement to my classes I drop out the crude vitalistic and psychological terminology, and stick to what I believe to be the biological factors involved in his theories (Freud himself admits the possibility of this).
Here was part of the problem:
Perhaps more than any other area of science, psychology has been rich in vitalist concepts, particularly through the ideas of Sigmund Freud and Carl Jung. Freud was a student of the notable anti-vitalist Hermann von Helmholtz, and initially struggled to express his concepts in strictly neurological terms. Abandoning this effort as fruitless, he became famous for his theory that behaviour is determined by an unconscious mind, of which the waking mind is unaware. In 1923, in The Ego and the Id, he developed the concept of “psychic energy” as the energy by which the work of the personality is performed.
Watson—on Freudian vitalism:
Here was part of the problem: