INTELLIGENCE, POWER, 



establishing the emotions of fear, anger, love, and hate in 

 the child. These came over the protoplasmic bridge. The 

 problem of the parent and the teacher is to place patterns 

 in the matrix of the child while the phylogenetic wild ani- 

 mal is playing and fighting and courting and growing. It 

 is while the child is still a wild animal and there is only a 

 prospect of his becoming a civilized human being that the 

 parent and the teacher must etch the way. 



Physical Factors That Govern Mental Processes 



Life, normal and pathological, is a function of proto- 

 plasm, and education is a special process of changing proto- 

 plasm. Protoplasm is a dynamic not a static system. The 

 protoplasm of a plant is identical in principle, though not 

 in pattern, with the protoplasm that executes the heart- 

 beat in man, that executes the movements of the football 

 player, that sings a song, that reproduces offspring, that 

 executes an emotion, that fabricates fever, that is altered 

 by shock and injury, that is attacked by infection, or that 

 has its action exalted or depressed or suspended by anes- 

 thetics, narcotics, and stimulants. It is the same protoplasm 

 upon which the educator etches the action patterns of 

 learning and discipline; it is the same protoplasm that is 

 built up by a properly balanced diet and by a proper bal- 

 ance between work and play, between activity and sleep, 

 by the contributions of normal ductless glands, the hypo- 

 physis, the thyroid and adrenal glands, the gonads, the 

 pancreas, and the liver. Each of these glands fabricates and 

 throws into the blood stream specific molecules, and from 

 the blood stream upon protoplasm everywhere are showered 

 like drops of rain on the green fields countless millions of 

 organic molecules, each organ and each tissue appropriating 

 what it needs of those specific molecules required for its 

 growth and activity until finally the protoplasm grows old 

 and breaks down in death. Thus it is that on this swiftly 

 moving protoplasmic film there are etched the patterns of 



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