The philosopher Plato, in his glorious work, the Timaeus, sets forth with more than mortal eloquence the constitution of the whole universe. After discoursing with great insight on the three powers that make up man’s soul, and showing with the utmost clearness the divine purpose that shaped our various members, he treats of the causes of all diseases under three heads. The first cause lies in the elements of the body, when the actual qualities of those elements, moisture and cold and their two opposites, fail to harmonize. That comes t............