Descartes, René, Renati Des-Cartes principia philosophiae
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              illos ex naturâ ſuà ceſſare, ſive tendere ad quietem. </s>
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              Quod profecto legibus naturae quàm-maxim adverſa­
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              tur: quies enim motui eſt contraria, nihilque ad ſuum
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              contrarium, ſive ad deſtructionem ſui ipſius, ex pro­</s>
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              XXXVII.
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              Prima les naturae:
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              quòd unaquaeque res,
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              quantum in ſe eſt,
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              ſemper in eodem statu
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              perſeveret; ſicque
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              quòd ſemel movetur,
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              ſemper moveri per­
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              gat. </s>
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              10</s>
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              15</s>
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              20</s>
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              25</s>
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              priâ naturà ferri poteſt. </s>
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              Et verò quotidiana experientia, in iis quae projiciun­
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              tur regulam noſtram omnino confirmat. </s>
              <s>Neque enim
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              alia ratio eſt, cur projecta perſeverent aliquandiu in
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              motu, poſtquam à manu jaciente ſeparata ſunt, quàm
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              quia ſemel mota pergunt moveri donec ab obviis cor­
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              poribus retardentur. </s>
              <s>Et manifeſtum eſt ipſa ſolere ab
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              ae
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              re, aliiſve quibuſlibet fluidis corporibus in quibus
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              moventur, paulatim retardari, atque ideb motum ipſo­
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              rum diu durare non poſſe. </s>
              <s>Ae
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              rem enim motibus alio­
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              rum corporum reſiſtere, ipſo ſenſu tadús poſſumus ex­
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              periri, ſi flabello ipſum percutiamus; idemque volatus
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              avium confirmat. </s>
              <s>Et nullus alius eſt liquor, qui non
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              manifeſtiús adhuc, quàm ae
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              r, motibus projectorum
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              reſiſtat. </s>
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              5</s>
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              XXXVIII.
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              De motu projectorum. </s>
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              10</s>
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              Altera lex naturae eſt: unamquamque partem mate­
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              riae, ſeorſim ſpectatam, non tendere unquam ut ſecun­
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              dúm ullas lineas obliquas pergat moveri, ſed tantum­
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              modo ſecundúm rectas; etſi multae ſaepe cogantur
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              deflectere propter occurſum aliarum, atque, ut paulò
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              antè dictum eſt a, in quolibet motu fiat quodammodo
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              circulus, ex omni materiâ ſimul motâ. </s>
              <s>Cauſa hujus
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              regulae eadem eſt quae praecedentis, nempe immutabi­
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              litas & ſimplicitas operationis, per quam Deus motum
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              in materiâ conſervat. </s>
              <s>Neque enim illum conſervat,
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              niſi praeciſè qualis eſt eo ipſo temporis momento quo </s>
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