THE RELATIVITY OF SPACE. 105 



would not be associated with the idea of any move- 

 ment enabling us to reach them, or with any appro- 

 priate parry. These sensations would not seem to us 

 to have any spacial character, and we should not 

 attempt to locate them. 



But we are not fixed to the ground like the inferior 

 animals. If the enemy is too far off, we can advance 

 upon him first and extend our hand when we are near 

 enough. This is still a parry, but a long-distance 

 parry. Moreover, it is a complex parry, and into the 

 representation we make of it there enter the repre- 

 sentation of the muscular sensations caused by the 

 movement of the legs, that of the muscular sensations 

 caused by the final movement of the arm, that of the 

 sensations of the semi-circular canals, etc. Besides, we 

 have to make a representation, not of a complexus 

 of simultaneous sensations, but of a complexus of 

 successive sensations, following one another in a deter- 

 mined order, and it is for this reason that I said just 

 now that the intervention of memory is necessary. 



We must further observe that, to reach the same 

 point, I can approach nearer the object to be attained, 

 in order not to have to extend my hand so far. And 

 how much more might be said ? It is not one only, but 

 a thousand parries I can oppose to the same danger. 

 All these parries are formed of sensations that may 

 have nothing in common, and yet we regard them 

 as defining the same point in space, because they can 

 answer to the same danger and are one and all 

 of them associated with the notion of that danger. It 

 is the possibility of parrying the same blow which 

 makes the unity of these different parries, just as 

 it is the possibility of being parried in the same way 



