Galilei, Galileo, Discourse concerning the natation of bodies, 1663

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      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="464"/>
              and thinne Figures: If all indifferently, then every Body ſhall reſt:
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              becauſe every Body hath ſome Figure, which is falſe: but if ſome
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              particular Figures only may be in ſome manner a Cauſe of Reſt, as,
                <lb/>
              for Example, the broad, then the others would be in ſome manner
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              the Cauſes of Motion: for if from ſeeing ſome Bodies of a contracted
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              Figure move, which after dilated into Plates reſt, may be inferred,
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              that the Amplitude of Figure hath a part in the Cauſe of that Reſt;
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              ſo from ſeeing ſuch like Figures reſt, which afterwards contracted
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              move, it may with the ſame reaſon be affirmed, that the united and
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              contracted Figure, hath a part in cauſing Motion, as the remover of
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              that which impeded it: The which again is directly oppoſite to what
                <lb/>
                <emph type="italics"/>
              Ariſtotle
                <emph.end type="italics"/>
              ſaith, namely, that Figures are not the Cauſes of Motion.
                <lb/>
              </s>
              <s>Beſides, if
                <emph type="italics"/>
              Ariſtotle
                <emph.end type="italics"/>
              had admitted and not excluded Figures from
                <lb/>
              ing Cauſes of not moving in ſome Bodies, which moulded into
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              ther Figure would move, he would have impertinently propounded
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              in a dubitative manner, in the words immediately following, whence
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              it is, that the large and thinne Plates of Lead or Iron, reſt upon the
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              water, ſince the Cauſe was apparent, namely, the Amplitude of
                <lb/>
              Figure. </s>
              <s>Let us conclude, therefore, that the meaning of
                <emph type="italics"/>
              Ariſtotle
                <emph.end type="italics"/>
                <lb/>
              in this place is to affirm, that Figures are not the Cauſes of abſolutely
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              moving or not moving, but only of moving ſwiftly or ſlowly: which
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              we ought the rather to believe, in regard it is indeed a meſt true
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              ceipt and opinion. </s>
              <s>Now the mird of
                <emph type="italics"/>
              Ariſtotle
                <emph.end type="italics"/>
              being ſuch, and
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              pearing by conſequence, rather contrary at the firſt ſight, then
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              vourable to the aſſertion of the Oponents, it is neceſſary, that their
                <lb/>
              Interpretation be not exactly the ſame with that, but ſuch, as being
                <lb/>
              in part underſtood by ſome of them, and in part by others, was ſet
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              down: and it may eaſily be indeed ſo, being an Interpretation
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              conſonent to the ſence of the more famous Interpretors, which is,
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              that the Adverbe
                <emph type="italics"/>
              Simply
                <emph.end type="italics"/>
              or
                <emph type="italics"/>
              Abſolutely,
                <emph.end type="italics"/>
              put in the Text, orght not to
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              be joyned to the Verbe to
                <emph type="italics"/>
              Move,
                <emph.end type="italics"/>
              but with the Noun
                <emph type="italics"/>
              Cauſes
                <emph.end type="italics"/>
              : ſo that
                <lb/>
              the purport of
                <emph type="italics"/>
              Ariſtotles
                <emph.end type="italics"/>
              words, is to affirm, That Figures are not the
                <lb/>
              Cauſes abſolutely of moving or not moving, but yet are Cauſes
                <emph type="italics"/>
                <lb/>
              cundum quid, viz
                <emph.end type="italics"/>
              in ſome ſort; by which means, they are called
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              Auxiliary and Concomitant Cauſes: and this Propoſition is received
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              and aſſerted as true by
                <emph type="italics"/>
              Signor Buonamico Lib.
                <emph.end type="italics"/>
              5.
                <emph type="italics"/>
              Cap.
                <emph.end type="italics"/>
              28. where he
                <lb/>
              thus writes.
                <emph type="italics"/>
              There are other Cauſes concomitant, by which ſome
                <lb/>
              things float, and others ſink, among which the Figures of Bodies hath
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              the firſt place,
                <emph.end type="italics"/>
              &c.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1531"/>
              Lib. 4. Cap. 61
                <lb/>
              Text. </s>
              <s>42.</s>
            </p>
            <p type="main">
              <s>Concerning this Propoſition, I meet with many doubts and
                <lb/>
              culties, for which me thinks the words of
                <emph type="italics"/>
              Ariſtotle
                <emph.end type="italics"/>
              are not capable of
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              ſuch a conſtruction and ſence, and the difficulties are theſe.</s>
            </p>
            <p type="main">
              <s>Firſt in the order and diſpoſure of the words of
                <emph type="italics"/>
              Ariſtotle,
                <emph.end type="italics"/>
              the
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              ticle
                <emph type="italics"/>
              Simpliciter,
                <emph.end type="italics"/>
              or if you will
                <emph type="italics"/>
              abſoluté,
                <emph.end type="italics"/>
              is conjoyned with the Verb </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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