Chap. II. ANTIENT METAPHYSICS. 



CHAP. ir. 



The ex'tftence of the Intelle&tial^ Animal^ Vegetable, and Elemental minds, 

 proved by their operations. — Motion, the fole agent in tue mate- 

 rial world ; — necejfary to treat of it at fome length. — Reference to 

 Vol. I. of this work, for the Author s ohfe.rvations on Ariflotle" s de- 

 finition of Motion. — Inquiry into the caufc oj motion. — Three caufcs 

 only: — ift, Body movijig itfelf—idi. Other bodies moving it, — 

 3d, mind moving it. — I he firfl, according to Sir Ifaac Newton^ 

 produced by a vis inlita, -Sir Ifaac s doElrine of motion, defective 

 in ajfigning a caufe for its continuation, but not for its beginning. 

 — Materialifm, and a teniency to atheifm, the confequence of Sir 

 Ifaac' s vis infita. — ^/V Ifaac s ignorance of Antient Philofophy, the 

 caufe of his error — His philofophy the fame with that of Epicurus ; 



— only notfo complete, as Epicurus accounted both for the begin- 

 ning and continuation of motion. — Reafons for theje fri&ures in Sir 

 Ifaac s philofophy. — He compounded the motions of the Cclefial Bo- 

 dies, of projection and gravitation. — ProjeBion, only produced by the 

 operation of body upon body. - Gravitation, according to his dodlrine, 

 produced by other bodies. — He had no idea of motion by mind, which 

 can move bodies in any direction ; — was ignorant of Arflotlc's 

 maxim. That nature does nothing unneceffary. — Materialifm and the 

 imputation of atheijm unavoidable, according to his fyflem of the mo- 

 tions of the Heavenly Bodies. — Of Derhatns fyfitm of the Heavens : 



— All the motions thtre, according to him, to be afcribed to the imme- 

 diate operation of Divinity : — Reafons for rejeSling this hypothefts. 



The Celeflial Bodies moved by minds intelleSlual — Comparifn of the 

 motions of the Celeflial Bodies with motions on earth produced by 

 projceiion and gravitation. — Proof both a priori and a pofteriori, 



that 



