Chap. 3. A Treattfe of B O D I E S. 



poflcfle more place thrn when tJiey were cool and quiet, and 

 filled not the veflel to the brim. For bo-vfoever witty explica- 

 tions may feem to evade, that the fame thing is now greater 

 now letter ; yet it cannot b; avoidcd> butthac ordinary men 

 who look not into Philofbphy, do both conceive it to be ib,and 

 in their familiar dilcotirle expreffe it foj which they could not 

 do, ifthey had not different notions of the fiibttancc, and of the 

 quantity of the thing they fpeak of. And though we had no 

 fuch evidences, the very names and definitions of them would 

 put it beyond ft rife : all men calling (iibrtance, a thing; qnanti- 

 tie, bignelfe : and referring a thing to Being' t as who would 

 fay, that which is : but bigneflc to fome other of like nature, 

 unto which it is compared; as, that his half as big , twice as 

 big, or the like. 



This then being unavoidable, that the notions are diftin- 

 guifhed; there remaineth no difficulty but onely in the Second, 

 namely that the one may be changed, and the other not. Which 

 rcafon and demonstration do convince, as wchave fhewed. 

 Wherefore if any fhall yet further reply, that they do not un- 

 derftand how fuch change is made; we Shall anfwer, by asking 

 them whether they know how the change of being Sometimes 

 here Sometimes there is made by locall motion in vacuum.with- 

 outa change in the body moved. Which queftionif they can- 

 not Satisfie,they muft either deny that there is any locall motion 

 in vacuum; or elfe admit a change in quantity without a change 

 in fubftance; for this latter is as evidently true, as they Hippolc 

 the foimer to be; though the manner how they are effefl- 

 cd be alike obfcure in both, and the rcafon of the obfcurity the 

 lame in bpch. 



. With which we will conclude the prefent Chapter ; adding 

 onely this note: That if all Phyficall things and nattirall chan- 

 ges do proceed out of the constitution of rare and dcnfe bodies 

 in this manner as we do put them, ( as the work we have in 

 hand intendeth to fhew ) then,fo manifold effects will fo con- 

 vince the truth of this doctrine which we have declared, that 

 there can remain no doubt of it : neither can there be any 

 'of the divisibility of quantity from fubrtance; without which 

 this doctrine cannot confift. For it cannot be undcrflood, 

 how there is a greater proportion of qnandtie then cf fub- 



ftance; 



