Gravesande, Willem Jacob 's, Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1

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            <s xml:id="echoid-s225" xml:space="preserve">Quis mortalium de omnibus aut ſingulis Naturæ Legi-
              <lb/>
            bus hac in parte aliquid non temere aſſerere audebit? </s>
            <s xml:id="echoid-s226" xml:space="preserve">Mul-
              <lb/>
            tas etiam Leges non eſſe detectas, circa alias varia deſide-
              <lb/>
            rari, qui Naturæ Phænomena examinavit, pleniſſime
              <lb/>
            perſuaſum habebit.</s>
            <s xml:id="echoid-s227" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s228" xml:space="preserve">Non tamen, ut ignoto fundamento nixum, contemnen-
              <lb/>
            dum Philoſophiæ Naturalis ſtudium. </s>
            <s xml:id="echoid-s229" xml:space="preserve">Limitibus arctis circum-
              <lb/>
            ſcribitur mentis humanæ cognoſcendi capacitas, & </s>
            <s xml:id="echoid-s230" xml:space="preserve">qui
              <lb/>
            niſi evidentiæ aſſenſum dare negat, omnibus momentis in
              <lb/>
            dubio hæret, & </s>
            <s xml:id="echoid-s231" xml:space="preserve">inter incognita refert multa, circa quæ
              <lb/>
            vix per momentum temporis dubitandum plerique credunt.
              <lb/>
            </s>
            <s xml:id="echoid-s232" xml:space="preserve">Cognita tamen ab ignotis rite ſeparare eſt animæ intelli-
              <lb/>
            gentis perfectio, terræ incolam ſuperans, ſed ad quam
              <lb/>
            acquirendam, continuo, animo attento, ſeſe applicare
              <lb/>
            debet. </s>
            <s xml:id="echoid-s233" xml:space="preserve">Si in Phyſicis multa latent, quæ in hac ſcientia
              <lb/>
            traduntur certa ſunt. </s>
            <s xml:id="echoid-s234" xml:space="preserve">Ex paucis generalibus principiis in-
              <lb/>
            numera Phænomena peculiaria explicantur; </s>
            <s xml:id="echoid-s235" xml:space="preserve">hæcque ex
              <lb/>
            illis Mathematica demonſtratione deducenda ſunt. </s>
            <s xml:id="echoid-s236" xml:space="preserve">Agi-
              <lb/>
            tur ubique de motuum collatione, id eſt, de quantitatum
              <lb/>
            comparatione, circa quam qui demonſtrationibus Mathe-
              <lb/>
            maticis in ratiociniis non progreditur, ſi non in erro-
              <lb/>
            rem, ſaltem in incertas concluſiones incidet.</s>
            <s xml:id="echoid-s237" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s238" xml:space="preserve">Quæcunque ergo habeat ignota Phyſica, vaſta & </s>
            <s xml:id="echoid-s239" xml:space="preserve">cer-
              <lb/>
            tiſſima eſt nihilominus hæc ſcientia, & </s>
            <s xml:id="echoid-s240" xml:space="preserve">maxime utilis.
              <lb/>
            </s>
            <s xml:id="echoid-s241" xml:space="preserve">Corrigit innumera circa res naturales, & </s>
            <s xml:id="echoid-s242" xml:space="preserve">divinam ſapien-
              <lb/>
            tiam, falſa judicia; </s>
            <s xml:id="echoid-s243" xml:space="preserve">omnibuſque momentis in DEI ope-
              <lb/>
            ribus hanc ſapientiam ante oculos ponit; </s>
            <s xml:id="echoid-s244" xml:space="preserve">& </s>
            <s xml:id="echoid-s245" xml:space="preserve">multum dif-
              <lb/>
            fert, ſupremi Numinis potentiam, ſapientiamque, </s>
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