Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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perationes non fiunt ſponte, ſed violentèr, tunc pro
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tunciari debeat prædictas operationes à natura, at
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que à principio naturali factas non eſſe. </
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Cap. 4. poſi
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tiuam leui
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tatem noņ
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dari.</
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">Vno verbo, erit quoque naturalis operatio illą,
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quæ cum aliqua violentia efficitur. </
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PROP. XXXVIII.
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Licet in aſcenſu ligni per aquam violentia aliqua inter
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cedat, nihilominùs operatio tota naturalis erit.
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">HOc autem poteſt confirmari hac ratione; ſi
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eſſet, quòd quælibet operatio in qua violentia
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aliqua adhibetur reputari deberet non naturalis, ſe
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queretur quòd alterationum corporum
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pariterque omnium generationum vegetabilium, &
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animalium nulla eſſet, neque vocari poſſet operatio
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naturalis, eò quòd ſemper requiritur actio, & paſ
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ſio qualitatum, & corruptio præcedentis ſubſtantiæ.
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">Nec tamen dubitandum eſt paſſiones prædictas, &
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corruptiones, operationes eſſe violentas, non ſpon
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te, ſed cum diſplicentia, & paſſione quadam factas,
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igitur in omnibus prædictis operationibus naturą
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ipſa violentiam exercet, & propterea confitendum
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eſt proprium inſtitutum naturæ eſſe violentiam exer
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cere, ita vt ſine ipſa nil prorsùs efficere ſciat, neque
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ſuos fines conſequi valeat. </
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eſſe, vt natura deſtruat præ
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cedentem formam, cùm ſub ſequens minimè generari
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poſſit perſeuerante prima, & proindè, inquiunt, pri-</
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