Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica
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            <s xml:id="echoid-s8689" xml:space="preserve">
              <pb o="664" file="0404" n="423" rhead="CHRISTIANI HUGENII"/>
            diam, decorem attinent; </s>
            <s xml:id="echoid-s8690" xml:space="preserve">non tamen dubitari poteſt, quin
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            in veri inveſtigandi ſtudio, judicandis rationum conſequen-
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            tiis, ac præſertim in ratiociniis, quæ ad quantitatem ac ma-
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            gnitudinem ſpectant, circa quæ Geometria verſatur, (ſi quid
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            habent ejuſmodi, quod mox inquiremus) non, inquam,
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            dubitari poteſt, quin prorſus ſimilis ſit, eademque via in-
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            grediatur illorum ac noſtra ratio; </s>
            <s xml:id="echoid-s8691" xml:space="preserve">quodque apud nos verum
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            eſt, idem ſit in cæteris Planetis. </s>
            <s xml:id="echoid-s8692" xml:space="preserve">Etſi vis ac facultas in his
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            rebus major minorve illorum incolis fortaſſe quam nobis
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            contigerit.</s>
            <s xml:id="echoid-s8693" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s8694" xml:space="preserve">Sed jam nimis longè provectum me eſſe ſentio. </s>
            <s xml:id="echoid-s8695" xml:space="preserve">Ante
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            enim diſpiciendum erat de ſenſibus corporeis iſtorum in Pla-
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            netis agentium, quibus ſi carerent, vix jam aut vitam, ut
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            animalia, ſortiti eſſe videri poſſint, aut habere, in quo ra-
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            tionis uſum exerceant. </s>
            <s xml:id="echoid-s8696" xml:space="preserve">Puto autem oſtendi poſſe probabili-
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            bus argumentis & </s>
            <s xml:id="echoid-s8697" xml:space="preserve">bruta animantia, & </s>
            <s xml:id="echoid-s8698" xml:space="preserve">quibus ratio ineſt,
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            convenire, in his quæ ad ſenſus attinent, cum iis quæ ter-
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            ram hanc incolunt. </s>
            <s xml:id="echoid-s8699" xml:space="preserve">Primùm namque ſi cogitemus quid ſit
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              <note position="left" xlink:label="note-0404-01" xlink:href="note-0404-01a" xml:space="preserve">Nec deeſſe
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              @ll@s ſenſus.</note>
            in animalibus videndi poteſtas, abſque qua neque paſcendi
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            ratio eſſet, nec pericula vitandi; </s>
            <s xml:id="echoid-s8700" xml:space="preserve">nec denique vita alia quam
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            talparum aut lumbricorum; </s>
            <s xml:id="echoid-s8701" xml:space="preserve">prorſus neceſſe eſſe intelligemus
              <lb/>
            ut, ubi ſunt animalia his præſtantiora, ibi & </s>
            <s xml:id="echoid-s8702" xml:space="preserve">viſu prædita
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            ſint. </s>
            <s xml:id="echoid-s8703" xml:space="preserve">Cum nihil ad vitam vel conſervandam, vel exornan-
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            dam æque conducat. </s>
            <s xml:id="echoid-s8704" xml:space="preserve">Quod ſi vero inſpiciamus mirabilem
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            lucis naturam, ſtupendumque artificium, quo ad eam fruen-
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            dam oculi comparati ſunt, facile cognoſcemus, perceptionem
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            rerum procul diſtantium, cum circumſcriptione formarum, diſ-
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              <note position="left" xlink:label="note-0404-02" xlink:href="note-0404-02a" xml:space="preserve">Nec viſum.</note>
            crimen intervallorum, non alio modo, quam qui ex viſu ſit,
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            inſtitui poſſe. </s>
            <s xml:id="echoid-s8705" xml:space="preserve">Non enim poteſt hic ſenſus, imo nec alius quiſ-
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            quam eorum quos novimus, exiſtere, quam ex motu extrinſecus
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            adveniente. </s>
            <s xml:id="echoid-s8706" xml:space="preserve">Qui motus, ut alibi explicuimus, in efficiendo vi-
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            ſu, à Sole proficiſcitur, aut ſtellis inerrantibus, aut igne; </s>
            <s xml:id="echoid-s8707" xml:space="preserve">quo-
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            rum particulæ celerrima agitatione concitæ, circumfuſam cæ-
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            leſtem materiam continue pulſant, impelluntque; </s>
            <s xml:id="echoid-s8708" xml:space="preserve">qui impulſus
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            a proximis ad longe diſſitas citiſſime propagetur, fere eo modo
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            quo ſonus per aërem. </s>
            <s xml:id="echoid-s8709" xml:space="preserve">Abſque hoc motu, materiaque </s>
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