Essays in medical sociology Volume 1

xcerpt from Essays in Medical Sociology Vol. 1The empty arteries did not suggest the circulation of the blood to ancient physiologists nor did the curious arrangements of the intestinal canal explain the complicated function of digestion. Ignorance of facts preconceived notions or fanciful theories as to ''vital spirits'' ''cold and hot humours'' etc. long delayed the attainment of correct knowledge of physiological facts.Neither does physical knowledge of individual function reveal the developed use of which it is capable. The new life that may be given through touch to the blind or the destruction of a nation through its vices is not revealed by the minutest examination of the mechanism of touch or the physical structure of the nervous system. Function and use are only proved by observation reflection and rational experiment patiently carried on age after age with generalization based upon accurate and accumulated facts.