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©f note ? for any thing elfe but honeft Moralities , did negiedi the 
1 \f at hematic ks? What free-born Child , or yet what Slave , of any 
promiftng hopes , was not entered into thefe Difciplines ,• before 
they could number ten years of their Age. If thefe men would 
addict their palats to the pure fountains , and not wander after eve- 
ry poluted ftream , then they would find moreleafure for better 
things, to dofomegood for themfelves and others: Then they 
would tafte the pleafure, and reap the profit of their old Rule, 
Dulcim ex if fe fonts 0 &c. 
And withal they would have better underftood their beft friends.’ 
Certainly | If Ariftotle had been fo happy , as to have enjoyed 
our Of ticks , and other Inftruments of Arts , and fuch Engins as 
we now employ 3 He would have been quite of another fpint than 
thefe are 5 and would have acknowledged a greater variety and 
more curious contexture , and more brisk Mechanicks in the infe- 
ct ties ^ which were in thofe dayes inviftble , than in all the Animals, 
that were then known, or than are yet to be found in afar wider 
circumference 5 and would have confeft the productions of our 
Pyrotechnical Furnaces to excell all , that could be reafombly ex- 
pelled from his own vztt. Fiery Region. 
We fay heartily. Read Ariftotle , read him in his own Stile 5 
read him entirely and fully 5 not feeding onely on his Ulcers and 
Excrefcencies 5 nor taking up your reft in his Un-tntelligible Hea- 
vens.^ at their Adamantine Gates , or about their Flaming Walls 1 
Embrace his calm rayes> and his dif-intereiTed Reafonings: chufe 
his beft Vertues examine and weigh all his Mathematical Illuftra- 
tions 5 defcend to his particulars : And then haften to our Chrifii- r 
an Philofophers 5 and they will forth- with acquaint you with the 
true Works and wonderful Contrivances of the Supreme Author, , 
and with the Difcoveries , which by his- indulgent Providence and 
his benigne Infpirations have been in former and later Ages afford- 
ed 3 for the benefit, and the fincerely grateful acknowledgements 
of humane race, 
5 Tis our main buftnefs., as well to retrive all valuable Antiqui- 
ties , as to fupply/K//; Difcoveries : to recover good old Helfs 3 as 
well as to devife New. All our Artificers are deft gned, and ap- 
propriated, to unlock all the Repoft caries -of Nature , To draw 
out her moft concealed Operations and Rarities 5 To produce them 
with.* 
