34 ANTIENT METAPHYSICS. Book I. 



CHAP. VI. 



Proved that Body cannot move itfelf. — Obje^ions anfzvered from the 

 JntelleSiiial Mindy ivhich can refieSl upon itfelf. — Tijuo Authorities 

 quoted for this Opinion, one from AnHotle^ and otie from Themiftius. 

 — If Matter moves itfef, there mufl he Intelligence in Matter, as 

 •well as Self-Motion. — If the Mover and moved be different, there 

 cannot be an infnite Series of Movers, of Caufes, and Eff eels. •-• Still 

 lefs, if the Movement be circular. — If Body cannot afl, it cannot 

 think. — To think, therefore, contrary to its Nature. — Deficiency of 

 Dr Clarke's Argument againfl Matter moving itfelf, fupplied. — Dr 

 Prieftley's Notion of Matter Jlill more extraordinary than the No- 

 tion of thofe voho fay that it moves itfelf. — Of the Hypot hefts of 

 Body moving Body by other Bodies interpofed. — ^Body is moved 

 by a vis infita, it mufl he Intelligent — Body and Mind perfe6ily 

 difcriminated by the Definition given of them. 



IN the courfe of this reafoning, I have taken for granted that 

 Body does not move itfelf, but that there is fomething that 

 moves it, which I call Mind. Whoever has taken the trouble to 

 read the third chapter of the fecond book of the firft volume, will 

 not, I hope, think that, in laying down this as a certain propofition,. 

 I have afTumed too much. And, indeed, if it be admitted, as I think 

 it mufl be, that, to move is to aB, to he moved is X.ofuffer ; it is im- 

 pofRble to conceive how Body ihould adb upon itfelf, and be, at the 

 fame time, and in the fame refpedt, both Agent and Patient. The 

 intellectual Mind, it is true, can make itfelf its own Object. But 

 Mind is effentially different from Body in this refped, that it can- 

 not 



