100 DOCTRINE OF MATERIALISM. 



the sum of the motion of all its parts ; and if 

 thinking or consciousness can be supposed to 

 be a quality inherent in a system of matter, it 

 must be also the sum and result of the thinking 

 and cogitation of all its separate parts. We 

 should, therefore, have as many distinct con- 

 sciousnesses or minds, as there are particles of 

 matter of which the brain consists, an idea 

 fanciful and false ; for composition or division 

 of magnitude varied, in an infinite manner, 

 can produce nothing in the whole system 

 but magnitude ; composition, and variation 

 of motion, nothing but motion ; composition, 

 and variation of figure, nothing but figure ; and 

 so of every other quality whatever. If, how- 

 ever, it be supposed that not the brain altoge- 

 ther, but one particle of it alone, is the seat of 

 the soul, &c. that one particle being divisible 

 into two, there must, consequently, exist two 

 souls, not one soul, in the same system, and 

 that each must think apart, and not together. 



