Descartes, René
,
Renati Des-Cartes principia philosophiae
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ram videmus eſſe mobilius flammâ; nam & alia cor
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pora, juxta quae poſita eſt, niſi ſint admodum ſolida
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&sdura, particulatim diſſolvit, ac ſecum movet. </
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tamen ejus motus ſit tantúm ſecundum partes, & tota
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migrare non ſolet ex uno loco in alium, niſi ab aliquo
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alio corpore, cui adhaereat, deferatur; quâ ratione
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poſſumus etiam exiſtimare Solem conſtare quidem ex
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materiâ valde fluidà & mobili, quá omnes coeli cir
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cumjacentis partes ſecum rapit; ſed in hoc nihilomi
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nus Stellas fixas imitari, quòd non ex unà coeli regione
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in aliam migret. </
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XXI.
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Solem inſtar flammae
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ex materiâ quidem
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valde mobili conſta
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re, ſed non ideò ex
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uno loco in alium mi
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grare. </
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Neque incongrua videri debet Solis cum flammâ
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comparatio, ex eo quòd nullam flammam hîc videa
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mus quae non continuo egeat alimento; quod idem
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de Sole non obſervatur. </
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minús flamma, quàm quodvis aliud corpus, ubi ſemel
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exiſtit, ſemper exiſtere perſeverat, niſt ab aliquâ cauſâ
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externâ deſtruatur; ſed, quia con:ſtat materiâ quam
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maximè fluidà & mobili, aſſidu hic ſupra terram à
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materiâ circumjacente diſſipatur; atque ideò eget ali
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mento, non ut eadem quae jam exiſtit conſervetur, ſed
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tantúm ut, dum ipſa extinguitur, ſemper alia nova
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in ejus locum ſubſtituatur. </
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ſtruunt partes coeli ei vicinae, ideòque non ita eget
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alimento quo reparetur. </
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detur a, novam ſemper materiam in Solem ingredi, &
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aliam ex eo elabi. </
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XXII.
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Solem à flammâ dif
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ferre, quòd non ita
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egeat alimento. </
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Hîcque notandum eſt, ſi Sol in ſitu non differat à
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Fixis, ipſas omnes in unius alicujus ſphaerae circumſe
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rentiâ non verſari, quemadmodum multi ſupponunt, </
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