For the northern combination, extroverted and stabile, was clearly what Hippocrates, Galen, Aristotle, Trimestigus, Wundt, and Jung would have called sanguine; the western point, extroverted and labile, was choleric; in the east, introverted and stabile was phlegmatic; and in the south, introverted and labile was of course the very definition of the melancholic!
