Psychiatry is a stepchild of medicine. All other branches of medicine have one great advantage: the scientific method. In all other branches there are things that can be seen and touched, physical and chemical methods of investigation to be followed. The microscope reveals the dreaded bacillus, the surgeon’s knife halts at no anatomical difficulty and gives us glimpses into the most vital and inaccessible organs. Psychiatry, the art of healing the soul, still stands at the door, seeking in vain to weigh and measure as in the other departments of science. We have long known that we have to do with a definite organ, the brain; but only beyond the brain, beyond the anatomical substrate, do we reach what is important for us — the psyche, as indefinable as ever, still eluding all explanation, no matter how ingenious.
C. G. Jung, CW Vol3, para 320.
