s6 ANTIENT METAPHYSICS. Book I. 



CHAP. IV. 



Univerfals conneBed ivith Motion — Habit — Power of tivo kindst vh. 

 Capability — and Faculty — Energy Ukeivife of tivo kinds — different 

 from Adlion — Action and Paflion reciprocal — 77?^ tivo great Prin^ 

 ciples of Nature are One Thing, that is alivays adtive, and another, 

 that is alivays paffive — Change a uery general Idea — jnore general 

 than Motion — Different kinds 0/ Change — AH Change produced by 

 fome Cau(e — Different kinds o/Caufes — The Docirine o/' Caufes ^ 

 great Difcovery of AriJiotle-^OfBtrng^ and the Accidents 0/ Being, 



HAVING thus explained the general idea of motion^ I will 

 now proceed to explain fome other univerfals which are con- 

 nedted with it, and belong to the fyftem of the univerfe. 



In \hefrft place, as we have feen tliat motion is a progreffion from 

 one ftate to another, it is proper to explain what fate is, which is 

 fu})pofed to be fomething permanent, in contradiftin^fliou to motion^ 

 which, by its nature, is fleeting and tranfitory. A ftate, in this fenfe, 

 is what is called in Greek v^,?, and which is properly tranflated into 

 Englifh by the word habit^ though that word be commonly ufed in 

 an abufiive fenfe, to denote cujlom or ife^ by which hcdnt is formed. 

 Now, habit is a certain conftitution, frame, or difpofui( n of parts, 

 whether it be the work of nature or art, by which every thing is fitted 

 to a6t or fuffer in a certain way ; for notiing exifts that is not, by 

 nature or art, de(\ined for one, or other, or both of tnefe puipoies, 

 otherways it would exift in vain; and nature does nothing in vain ; 



nor 



