174 ADVANCEMENT OF LEARNING 



parts of physics, and considers quantity so far as may &quot;be 

 assisting to illustrate, demonstrate, and actuate those; for 

 without the help of mathematics many parts of nature could 

 neither be sufficiently comprehended, clearly demonstrated, 

 nor dexterously fitted for use. And of this kind are per 

 spective, music, astronomy, cosmography, architecture, and 

 mechanics. In mixed mathematics we at present find no 

 entire parts deficient, but foretell there will be many found 

 hereafter, if men are not wanting to themselves; for if phys 

 ics be daily improving, and drawing out new axioms, it 

 will continually be wanting fresh assistances from mathe 

 matics; so that the parts of mixed mathematics must grad 

 ually grow more numerous. 



We have now gone through the physical sciences, and 

 marked out the waste ground in them. If, however, we 

 have departed from the ancient and received opinions, and 

 arrayed opponents against us, we have not affected contra 

 diction, and therefore will not enter into the lists of conten 

 tion. If we have spoken the truth, 



&quot;Non canimus surdis; respondent omnia sylvse,&quot; 6 



the voice of nature will cry it up, though the voice of man 

 should cry it down; and as Alexander Borgia was wont to 

 say of the expedition of the French against Naples, that 

 they came with chalk in their hands to. mark up their lodg 

 ings, and not with weapons to fight, so we prefer that entry 

 of truth which comes peaceably, when the minds of men 

 capable of lodging so great a guest are signed as it were with 

 chalk, than that which comes with pugnacity, and forces its 

 way by contentions and controversies. Wherefore, having 

 gone through the two parts of philosophy that relate to God 

 and to Nature, we come to the third, which is man himself. 



6 Virg. Eclogues, x. 8. 



