xvi. INTRODUCTION 



mind of man, at the present stage of his mental evolution, of 

 combining the two tasks of comprehension of obtuse questions, 

 and at the same time exerting his imperfect faculty of memory. 

 So I have deemed it wisest to be tautological to overbearance 

 in the criticism of the wise student, rather than overtax the 

 strength of the beginner. 



