Lucretius, De rerum natura: Libri Sex, 1566

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    <archimedes>
      <text>
        <body>
          <chap n="2">
            <p type="main">
              <pb xlink:href="079/01/110.jpg" pagenum="61"/>
            </p>
            <p type="main">
              <s id="s.000481">Praeterea, quoniam nequeunt sine luce colores
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              Esse, neque in lucem existunt primordia rerum:
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              Scire licet quam sint nullo velata colore.</s>
              <s id="s.000482">
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              Qualis enim caecis poterit color esse tenebris,
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              Lumine qui mutatur in ipso, propterea quod
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              Recta aut obliqua percussus luce refulget? </s>
              <s id="s.000483">
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              Pluma columbarum quo pacto in sole videtur;
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              Quae sita cervices circum collumque coronat.</s>
              <s id="s.000484">
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              Namque alias fit uti claro sit rubra pyropo:
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              Interdum quodam sensu fit, uti videatur
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              Inter caeruleum viridis miscere smaragdos.</s>
              <s id="s.000485">
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              Caudaque pavonis, larga cum luce repleta est,
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              Consimili mutat ratione obversa colores:
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              Qui, quoniam quodam gignuntur luminis ictu,
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              Scire licet sine eo fieri non posse putandum.</s>
              <s id="s.000486">
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              Et quoniam plagae quoddam genus excipit in se
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              Pupula, cum sentire colorem dicitur album;
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              Atque aliud porro, nigrum cum, & cetera sentit:
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              Nec refert ea, quae tangis, quo forte colore
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              Praedita sint, verum quali magis apta figura:
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              Scire licet nihil principiis opus esse colores;
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              Sed variis formis variantes edere tactus.</s>
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            </p>
            <p type="main">
              <s id="s.000487">Praeterea, quoniam non certis certa figuris
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              Est natura coloris, & omnia principiorum
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              Formamenta queunt in quovis esse nitore:
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              Cur ea, quae constant ex illis, non pariter sunt
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              Omnigenis perfusa coloribus in genere omni? </s>
              <s id="s.000488">
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              Conveniebat enim corvos quoque saepe volantis
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              Ex albis album pinnis iactare colorem;
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              Et nigros fieri nigro de semine cycnos,
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              Aut alio quovis uno, varioque colore.</s>
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            </p>
            <p type="main">
              <s id="s.000489">Quin etiam quanto in partes res quaeque minutas
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              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>