[ 5*3 ] 
mcafured by fun pic and compound Ratio s } yet I 
do not think that any real Knowlege has been ftruck 
out this Way : It may perhaps, if diferetely ufed, be 
a Help to Difcourfe on thefe Subjects, bypleafing the 
Imagination, and illudrating what is already known 5 
, but until our Aft'edions and Appetites fhall themfelvcs 
be reduced to Quantity, and exact Mcafurcs of their 
various Degrees be affigned, in vain fhall we effay to 
meafure Virtue and Merit by them. This is only to 
ring Changes upon Words, and to make a Shew of 
mathematical Reafoning, without advancing one 
Step in real Knowlege. 
Sect. y. Cor oil. 3. 
I apprehend the Account that hath been given of 
the Nature of proper and improper Quantity may 
alfo throw fome Light upon the Controverfy about 
the Force of moving Bodies, which long excrcifed 
the Pens of many Mathematicians, and for what I 
know is rather dropki than ended ; to the no final! 
Scandal of Mathematics, which hath always beaded 
of a Degree of Evidence, in confident with Debates 
that can be brought to no Ifluc. 
Tho' Phiiofophers on both Sides agree with one 
another, and with the Vulgar in this, That the 
Force of a moving Body is the fame, while its Ve- 
locity is the fame, is increafed when its Velocity is 
increafed, and dimin idled when that is diminifhed. 
But this vague Notion of Force, in which both Sides 
agree, tho’ perhaps fufficient for common Difcourfe, 
yet is not fufficient to make it a Subjed of mathe- 
matical Reafoning : In order to that, it mud be 
more accurately defined, and fo defined as to give 
> J us 
