PHYSICAL AND LITERARY. 131 



When motion is obferved to begin in 

 any body, it muft be afcribed to one or 

 other of thefe four caufes ; r. Some ex* 

 ternal animated being; 2. An external 

 inanimated being ; 3. A felf-moving ani- 

 mated faculty ; and 4. A felf-moving 

 inanimated faculty. Of the former three, 

 there are a variety of manifeft examples. 

 Of the laft there can be no certain exam- 

 ple at all ; and confequentiy we fhould 

 make a bad choice in preferring ic to the 

 others : Such a fuppofition, namely the 

 production of motion from an internal 

 inanimate principle, is intirely without 

 foundation ; and feems to be much the 

 fame thing as to allow, that motion may 

 begin without any caufe at all. 



That fomething may begin to exift» 

 or ftart into being without a caufe, hath 

 indeed been advanced in a very ingenious 

 and profound fyftem of the fceptical phi' 

 lofbphy * ; but hath not yet been adopted 



by 



• Treatife oo Human Nature, 3 vols. oSavo. This 

 is the fyftem at large, a work Tuited only to the coni< 

 prehcnfion ot Adepts, An excellent compend or fum« 



oiary 



