Galilei, Galileo, The systems of the world, 1661

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="065/01/027.jpg" pagenum="21"/>
              of natural bodies ſome are moveable by nature, and others
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              veable; eſpecially having before defined Nature, to be the
                <lb/>
              ciple of Motion and Reſt.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg50"/>
                <emph type="italics"/>
              Finite and
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              nate circular
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              tions diſorder not
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              the parts of the
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              World.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg51"/>
                <emph type="italics"/>
              In the circular
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              tion, every point in
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              the circumference
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              is the begining and
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              end.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg52"/>
                <emph type="italics"/>
              Circular motion
                <lb/>
              onely is uniform.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg53"/>
                <emph type="italics"/>
              Circular motion
                <lb/>
              may be continued
                <lb/>
              perpetually.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg54"/>
                <emph type="italics"/>
              Right motion
                <lb/>
              not naturally be
                <lb/>
              perpetual.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg55"/>
                <emph type="italics"/>
              Right motion
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              ſigned to natural
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              bodies, to reduce
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              them to perfect
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              der, when removed
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              from their places.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg56"/>
                <emph type="italics"/>
              Reſt onely, and
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              circular motion are
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              apt to conſerve
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              der.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMPL.
                <emph type="italics"/>
              Ariſtotle,
                <emph.end type="italics"/>
              though of a very perſpicacious wit, would
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              not ſtrain it further than needed: holding in all his
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                <arrow.to.target n="marg57"/>
                <lb/>
              tations, that ſenſible experiments were to be preferred before
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              any reaſons founded upon ſtrength of wit, and ſaid thoſe which
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              ſhould deny the teſtimony of ſenſe deſerved to be puniſhed with
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                <arrow.to.target n="marg58"/>
                <lb/>
              the loſs of that ſenſe; now who is ſo blind, that ſees not the
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              parts of the Earth and Water to move, as being grave,
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              ly downwards, namely, towards the centre of the Univerſe,
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              ſigned by nature her ſelf for the end and term of right motion
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                <emph type="italics"/>
              deorſùm
                <emph.end type="italics"/>
              ; and doth not likewiſe ſee the Fire and Air to move
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              right upwards towards the Concave of the Lunar Orb, as to the
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              natural end of motion
                <emph type="italics"/>
              ſurſùm
                <emph.end type="italics"/>
              ? </s>
              <s>And this being ſo manifeſtly ſeen,
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              and we being certain, that
                <emph type="italics"/>
              eadem est ratio totius & partium,
                <emph.end type="italics"/>
              why
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              may we not aſſert it for a true and manifeſt propoſition, that the
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              natural motion of the Earth is the right motion
                <emph type="italics"/>
              ad medium,
                <emph.end type="italics"/>
              and
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              that of the Fire, the right
                <emph type="italics"/>
              à medio
                <emph.end type="italics"/>
              ?</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg57"/>
                <emph type="italics"/>
              Senſible
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              ments are to be
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              ferred before
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              mane argument
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              tions.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg58"/>
                <emph type="italics"/>
              He who denies
                <lb/>
              ſenſe, deſerves to
                <lb/>
              be deprived of it.
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              </s>
              <s>Senſe ſheweth that
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              things grave move
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              to the
                <emph.end type="italics"/>
              medium,
                <emph type="italics"/>
              and
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              the light to the
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              concave.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>The moſt that you can pretend from this your
                <lb/>
              courſe, were it granted to be true, is that, like as the parts of the
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              Earth removed from the whole, namely, from the place where
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              they naturally reſt, that is in ſhort reduced to a depraved and
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              ordered diſpoſure, return to their place ſpontaneouſly, and
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              fore naturally in a right motion, (it being granted, that
                <emph type="italics"/>
              eadem
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              ſit ratio totius & partium
                <emph.end type="italics"/>
              ) ſo it may be inferred, that the
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              Terreſtrial Globe removed violently from the place aſſigned
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                <arrow.to.target n="marg59"/>
                <lb/>
              it by nature, it would return by a right line. </s>
              <s>This, as I have
                <lb/>
              ſaid, is the moſt that can be granted you, and that onely for want
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              of examination; but he that ſhall with exactneſs reviſe theſe
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              things, will firſt deny, that the parts of the Earth, in returning to
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              its whole, move in a right line, and not by a circular or mixt; and
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              really you would have enough to do to demonſtrate the
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              ry, as you ſhall plainly ſee in the anſwers to the particular reaſons
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              and experiments alledged by
                <emph type="italics"/>
              Ptolomey
                <emph.end type="italics"/>
              and
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              Ariſtotle.
                <emph.end type="italics"/>
              Secondly,
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              If another ſhould ſay that the
                <emph type="italics"/>
              parts
                <emph.end type="italics"/>
              of the Earth, go not in their
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              motion towards the Centre of the World, but to unite with its
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                <emph type="italics"/>
              Whole,
                <emph.end type="italics"/>
              and that for that reaſon they naturally incline towards the
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              centre of the Terreſtrial Globe, by which inclination they
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              ſpire to form and preſerve it, what other
                <emph type="italics"/>
              All,
                <emph.end type="italics"/>
              or what other Centre
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              would you find for the World, to which the whole Terrene
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                <arrow.to.target n="marg60"/>
                <lb/>
              Globe, being thence removed, would ſeek to return, that ſo the
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              reaſon of the
                <emph type="italics"/>
              Whole
                <emph.end type="italics"/>
              might be like to that of its
                <emph type="italics"/>
              parts
                <emph.end type="italics"/>
              ? </s>
              <s>It may be
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              added, That neither
                <emph type="italics"/>
              Ariſtotle,
                <emph.end type="italics"/>
              nor you can ever prove, that the
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              Earth
                <emph type="italics"/>
              de facto
                <emph.end type="italics"/>
              is in the centre of the Univerſe; but if any Centre </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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