190 



POPULAR SCIENCE MONTHLY. 



gether with the grounds of belief, Locke gave to the solution of these 

 opinion, and assent.' How do we come problems. By introspection he was 



by our knowledge and what are its 



led to affirm that the mind knows only 



limits? These are the problems which ; its own ideas, whence subjective ideal- 

 Locke regarded as fundamental, and ism was sure to ensue. In no case do 



John Locke. 



with which philosophy has been largely 1 we known things, but only ideas which 

 preoccupied since his time. Many of somehow represent things, thought 



the difficulties which modern specula- 

 tion has encountered owe their origin 

 directly to the curious turn which 



Locke. He denied the existence of in- 

 nate ideas of any kind, insisting that all 

 the mind's ideas are acquired afresh by 



