Buonamici, Francesco, De motu libri X

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              E</s>
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              F</s>
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              a Lib. de
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              nat. </s>
              <s>an.</s>
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              G</s>
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              H</s>
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              A</s>
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            <p type="head">
              <s>
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              Eadem methodo motum naturalem eſſe demonſtratur. </s>
              <s>Cap. </s>
              <s>XXX
                <emph.end type="italics"/>
              .</s>
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              <s>CÆTERVM vt perſpicuum eſt motum eſſe, ita dubitatum fuit ab antiquis philoſophis
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              eſſe motum quempiam naturalem; quare etiam, poſtquam viſum eſt hactenus eſſe
                <expan abbr="motũ">motum</expan>
              ,
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              eodem exemplo diſſeramus de motu naturali,
                <expan abbr="eoq́">eoque</expan>
              . </s>
              <s>potiſsimum, quod ipſius cauſſæ præcipuè no­
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              bis indagandæ ſunt; ita enim poſtulat bene inſtituta methodus in qua ſemper exordiendum eſt
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              à notioribus nobis: huiuſmodi autem eſt motus naturalis, ſi cum cæteris conferatur. </s>
              <s>Et quan­
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              quam id eadem via conſtare poteſt qua monſtrauimus eſſe motum ſimpliciter: nanque & eui­
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              dens eſt aliqua ſuopte impulſu moueri, ſiue ad locum, ſiue etiam ad quantum, aut quale; nan­
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              que eò pertinaciter vergunt, quò concitantur, nec ab eo ſeſe continere poſſunt, & ex eiuſmodi
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              progreſſu perficiuntur, neque violentiam vllam adhibet motor ad id, vt ea propellat, quod qui­
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              dem naturalem motum, à non naturali ſeiungit, & id ſine aliqua probatione ſumpſit ſæpiſsimè
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              Ariſtoteles,
                <emph type="sup"/>
              a
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              quaſi nobis perſpicuum ſit: interturbant tamen nos antiqui philoſophi Democri­
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              tus & Empedocles qui tametſi motum agnouerunt, & conceſſere quietem; nihilominus quietis,
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              & motus quę nos naturalia facimus, talia principia ſtatuerunt quę longiſsimè diſtarent à natura,
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              vnde motus hic naturalis appellatur, vt vim & caſum:
                <expan abbr="ideoq́">ideoque</expan>
              . </s>
              <s>Ariſtoteles in illos inuehitur, &
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              inanem illam opinionem funditus tollit, ac monſtrat eſſe motum naturalem, licet dubium ſit de
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              progreſſu Ariſtotelico, quantum pertinet ad huiuſmodi theorema nonnullis exiſtimantibus hoc
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              bis ab Ariſtotele fuiſſe tractatum, cum 1. tum etiam 3. de cœlo, atque item à priori, vt aiunt,
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              & ex cauſſa fuiſſe concluſum. </s>
              <s>Quanuis etiam non mediocrem ſcrupulum per ſeipſum inij­
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              cere debebat, quòd concluſum aliquando fuiſſet in phyſica methodo, cùm ſit racio & forma ſtra­
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              ti phyſici; ita vt magnam efficere poſſet admirationem in Ariſtotele, ne fortè ſuum teneret inſti­
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              tutum, niſi diceremus, aut ipſum obliquè concludi, vt ita dicam, quia ſcilicet diluamus rationes
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              contra ipſum allatas, aut per redargutionem, licet enim vtroque modo exagitare illos qui prin­
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              cipia ſcientiarum oppugnant, & dialecticè diſputationem inire, & ad obiecta reſpondere, modò
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              ex eiuſdem ſcientiæ principiis originem trahant; aut etiam ſi oſtendatur eſſe coniunctum, non
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              autem ſeparatum. </s>
              <s>verbigratia, quando conſidero motum naturalem, ipſum bipartitò concipere
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              poſſum; ſimpliciter quidem, & vt ſeparatum, veluti aſcenſum ignis qui ſanè naturalis eſt, ſed non
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              conſidero ipſum cum hoc attributo. </s>
              <s>poſſum etiam conſiderare motum illum ipſum, quatenus
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              eſt naturalis; ac priore quidem modo dubium non eſt motum à phyſico non poſſe tractari. </s>
              <s>quid
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              enim aſſumeret quod ipſo notius eſſet? </s>
              <s>cur etiam non periclitaretur, ne fortè ſtratum ſibi conſta­
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              ret quod ſine vlla ambiguitate ponendum eſt? </s>
              <s>tanto minus exiſtimandum eſt motum naturalem
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              à priori poſſe monſtrari: reſtat igitur, vt ſolum coniunctum concludi queat, & ita etiam dicimus
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              1. Phyſic. </s>
              <s>concluſum fuiſſe, non quidem eſſe principia ſeparatè, nec materiam, aut formam eſſe
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              ſeorſum, ſed totum hoc, materiam & formam eſſe principia. </s>
              <s>Sed veniamus ad ipſum
                <expan abbr="Ariſtotelẽ">Ariſtotelem</expan>
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              qui illo nomine vexat antiquos, quòd varia motionum principia ponant, atque diuerſas à natu­
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              ra cauſſas reddant motus & quietis quam nos dicimus naturalem: hi quidem aut quietis terræ
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              motum cœleſtem cauſſam facientes, aut infinitas radices quibus ipſa innitatur, aut reliquorum:
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              corporum auctorem caſum & fortunam, vel etiam animum mundi, & omnino cauſſas præter
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              naturam & per accidens. </s>
              <s>Ideò & particulatim & vniuersè huiuſmodi ſententiæ confuratæ ſunt
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              ab Ariſtotele. </s>
              <s>Quoniam verò de hiſce cauſsis aliàs agendum eſt ſigillatim, de ipſis generatim
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              nunc pauca quædam diſſeramus, & quantum ſufficit ad id cognoſcendum, quòd ſit motus qui­
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              dam editus à natura. </s>
              <s>Etenim ſi eſt cauſſa præter naturam, aut per accidens, etiam neceſſe eſt ali­
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              quam eſſe cauſſam per ſe & naturam, præterquam ea ſit cauſſa quæ præter naturam nuncupatur.
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              </s>
              <s>ita cùm caſus & fortuna ſint errores naturæ, etiam naturam præceſsiſſe oportet à qua excidat
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              agens id quod agendo peccat: atque hoc tantò credibilius eſt, quantò etiam res omnes ad id quod
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              præſtabilius eſt, ab agente certo dirigi, & per ſeipſas tendere videbuntur. </s>
              <s>Nam & id quod mouet
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              per ſe, bonum appetit quod alij communicet, & quod per ſe mouetur bonum ſibi ipſi cupit:
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              hoc autem eſt natura quæ perpetuum ordinem obſeruat, niſi quippiam obſtet, vel extrinſecum
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              quod naturæ curſum impediat, vel materia quæ non poſsit capere tantam perfectionem, quan­
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              tam ipſa forma, ſiue agens tribuere poſſet: ex quo conſtituitur ab ordine: atque adeò, vt ordo
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              rerum ſit natura ipſa:
                <expan abbr="eaq́ue">eaque</expan>
              ſit cauſſa motuum quorundam qui naturales ab ipſa dicantur: ex
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              quibus concluditur eſſe motum naturalem, quia ſit cauſſa quædam illius motus quem
                <expan abbr="naturalẽ">naturalem</expan>
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              vocamus. </s>
              <s>ea verò cauſſa vocetur natura. </s>
              <s>Sed etiam multò ante ſic argumentatus fuerat Ariſto­
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              teles auctoribus. </s>
              <s>quibuſdam. </s>
              <s>Natura eſt principium & origo motus, & ſtatus eius in quo eſt per
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              ſe. </s>
              <s>Corpora naturalia naturam habent, Ergo habent principium motus per ſe qui cùm ſit à na­
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              tura; iure optimo erit naturalis:
                <expan abbr="eoq́">eoque</expan>
              . </s>
              <s>ſigno probetur id quod propoſitum eſt, quòd vtitur Ari­
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              ſtoteles particula quæ notat cauſſæ redditionem. </s>
              <s>Vnde ex his atque aliis huiuſmodi perſuaderi
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              poſsit quiſpiam ab Ariſtotele concluſum fuiſſe, motum naturalem eſſe qui eſt ſcopus methodi
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              naturalis: neque id ſolùm communiter, verumetiam à priori & ex cauſſa, poſtquam ordinis </s>
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