174 MOKAL SENSE IN MAN. 



but at some time or in some part of the world has been, or 

 is still, held in the highest esteem.' 



As regards what are called ' abstract ideas ' of duty, for 

 instance Houzeau and other authors point out that they are 

 not natural either to savage man or to the civilised child. 

 The notion of duty, whatever be its nature, requires in both 

 to be developed by training. 



The moral sense, then, which has been so complacently 

 regarded as an instinct peculiar to man, is often absent in 

 him. There is a want of it, absolute or comparative, in 



1. Many savages. 4. Many lunatics. 



2. Many children. 5. Many criminals. 



3. Many idiots. 



And this has constantly to be borne in mind in all ex- 

 pectations or enquiries concerning the presence or absence 

 of the moral sense in other animals. 



