THE HOUSE FLY 3 



nated with brains educated brains. The only difference 

 between man and the lower animal is that he has a larger 

 and a heavier brain. A man who exists merely for the 

 gratification of his animal instincts and emotions is not 

 human. Humanity has no use for him, nor has Nature, 

 for this animal gratification invariably leads to excesses 

 which make it possible for disease microbes to attack and 

 destroy him. 



Our duty to ourselves, our children, the community and 

 the State, is to learn all we can about diseases and apply 

 such knowledge in a thorough and practical way. Ignor- 

 ance of man-made law is no excuse for committing crime ; 

 nor is deliberate, studied ignorance of the laws of hygiene 

 and health any excuse for the disease and premature death 

 brought about in others in the home, and in the com- 

 munity in consequence. 



Our first duty is to ourselves to live clean, wholesome 

 lives both mentally and physically ; our second duty is to 

 our children, to see that they are trained in a like manner ; 

 and thirdly we owe a distinct duty to the community, and 

 should each do our little best for the general welfare. In 

 this, the humble insect sets us a noble example, and in this 

 respect it is ahead of us. 



Disease microbes produce disease according to their kind. 

 No particular kind or species of microbe can infect a man 

 or beast with more than one type of disease. Now, before 

 these formidable little fellows can do us any harm they must 

 get into our bodies. They cannot deliberately crawl or 

 eat their way into us. They must in some way be carried 

 to us. We get them on our hands, and from there they are 

 carried to our mouths. People suffering from disease kiss 



