PHYSICAL AND LITERARY. 15 



find matter to be endued with certain 

 powers and faculties : Both are dis- 

 covered by the effedls produced ; and 

 we have no other means to make a dii^ 

 CO very. We fee a ftone fall without a- 

 ny external impulfe. From that effect we 

 have a juft foundation to conclude, that 

 the ftone has a power of moving itfelf. 

 And, if we have not a juft foundation to 

 make this conclufion, we have not a juft: 

 foundation to make this other conclufion, 

 that a man has a power of felf-motioa 

 when we fee him walking. And after all 

 it muft appear extremely whimlical to de- 

 ny to matter a power of motion, merely 

 becaufe matter difcovers itfelf to our ex- 

 ternal fenfes in part ; when, at the fame 

 time, we are fo ready to attribute powers 

 of every fort to immaterial fubftances, 

 which cannot be reached by our external 

 fenfes, either in whole or in part^ 



It is fuggefted above, that to endue 

 matter with a power of adling according 

 to general and invariable laws, exhibits a 

 more beautiful and compleat fyftem, thaa 



to 



