INTRODUCTORY 



what we call health is so small that humility is 

 the only true mental attitude ; but it must be 

 humility stimulated by hope and encouraged by 

 success. The orthodox horizon, which may seem 

 to some of us a fixed line, will always be for the 

 enthusiast and the worker shifting forward. 

 The word normal may become an obsession that 

 means stagnation, and that is a hindrance and 

 almost an insult to the conception of evolution ; 

 the normal of to-day should be only a milestone 

 by which those that come after may measure their 

 progress or the other thing. In the study of 

 therapeutics we must think of it as the preventing 

 of disease, as the maintenance of health, and still 

 farther as the attainment of a higher standard of 

 life, physical and moral, than we have hitherto 

 known. The word in Greek originally contains, 

 not the idea of healing, so much as service in all 

 things relating to man and his health. 



The intimate knowledge of bacteriology and of 

 organic chemistry in its new and rapid growth has 

 opened out new fields of biological interest, which 

 will enable our ideas of service and of the cure 

 and prevention of disease to be largely extended. 



Our human laws are often mere changing com- 

 promises, serving their purpose for a time, but 

 the Divine law that we observe in nature is one 



