112 MENTAL OPERATIONS IN RELATION TO TIME. 



states, of perceptions, acts of reason and volitions, to 

 be generally less rapid and their changes less various 

 in these instances ; and, what tells more in the in- 

 tellectual comparison, the power of the mind over its 

 own sequent operations is feebler and less coercive. 

 The differences may be of degree only, but they gra- 

 duate between the intellect of an infant or idiot and 

 that of a Newton or Shakespeare. 



I might from my notes add something more on this 

 interesting topic. But I have said enough, I hope, to 

 mark it out as a special path by which to seek further 

 ingress into the mysteries of our mental nature a 

 path, however, like any other having this direction, 

 stopped at the same point by a barrier insuperable 

 to all. 



