Descartes, René
,
Renati Des-Cartes principia philosophiae
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probetur fieri talem ſeparationem totius ſuperficiei
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convexae coeli ſtellati ab alio coelo ipſum ambiente;
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ſed planè ex arbitrio illam fingunt. </
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ipſorum hypotheſin, ratio cur motus ſit terrae tribuen
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dus, eſt certa & evidens; ratio verà cur illum coelo
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tribuant, & Terrae quietem, eſt incerta & à ſolâ illo
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rum imaginatione efficta. </
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XXXVIII.
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Juxta Tychonis hypo
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thesin dicendum eſſe,
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Terram moveri circa
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proprium centrum. </
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Ex eàdem Tychonis hypotheſi, Sol motu annuo
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circa Terram gyrans, non modò Mercurium & Vene
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rem) ſed etiam Martem, Jovem & Saturnum, qui ab
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eo remotiores ſunt quàm Terra, ſecum ducit: quod
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intelligi non poteſt, praeſertim in coelo fluido, quale
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illud ſupponunt, quin tota coeli materia interjacens
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ſimul ſeratur, & interim Terra vi aliquâ ſeparetur à
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partibus iſtius materiae ſibi contiguis, atque in eâ
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circulum deſcribat. </
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quae eſt totius Terrae, ac peculiarem in eâ actionem
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requirit, ejus motus erit dicendus. </
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XXXIX.
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Ac etiam illam moveri
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circa Solem motu an
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nuo. </
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Unus autem adhuc in meâ hypotheſi ſcrupulus
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manet, ex eo quòd, ſi Sol eundem ſemper ſitum inter
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Fixas ſervet, neceſſe ſit Terram, quae circa illum fertur,
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ad ipſas accedere ac recedere toto ſuae orbitee inter
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vallo: quod tamen ex phaenomenis non potuit hacte
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nus deprehendi. </
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diſtantiam, quam inter nos & Fixas eſſe ſupponimus;
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talem ſcilicet, ut totus ille circulus qui à Terrâ deſcri
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bitur circa Solem, ſi ad eam comparetur, inſtar puncti
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ſit habendus. </
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>Quod fateor incredibile videri poſſe,
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magnalia Dei conſiderare non aſſuetis, & Terram ut
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praecipuam partem univerſi, ac domicilium hominis,
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propter quem coetera omnia facta ſint, ſpectantibus; </
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