i8 



no such thing as innate knowledge, that knowledge 

 of every kind has to be acquired, and that it is 

 based upon perceptions reaching the mind through 

 the senses. 



Harvey thus epitomises what was said by 

 Aristotle respecting the manner in which the 

 knowledge appertaining to science is acquired — 

 " The thing perceived by sense remains ; from the 

 permanence of the thing perceived results memory ; 

 from multiplied memory, experience ; and from 

 experience, universal reason, definitions, and maxims 

 or common axioms." 



In its elementary form, knowledge consists of 

 simple inferences drawn in a direct manner from 

 impressions. A child once burnt afterwards shuns 

 the fire. From the impression received an inference 

 is framed which forms the foundation for future 

 action. 



The same kind of operation determines the 

 conduct of the lower animals. By mental action 

 these simple inferences may be raised into or give 

 rise to knowledge of a higher kind. This is what 

 for science is required to be done. The exercise 



