Galilei, Galileo, The systems of the world, 1661

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    <archimedes>
      <text>
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            <p type="main">
              <s>
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              ther built thereon. </s>
              <s>I deny not, that this which
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              Ariſtotle
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              hitherto
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              hath introduced, with a general diſcourſe dependent upon
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              ſal primary principles, hathbeen ſince in proceſs of time, re-inforced
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              with particular reaſons, and experiments; all which it would be
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              neceſſary diſtinctly to conſider and weigh; but becauſe what hath
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              been ſaid hitherto preſents to ſuch as conſider the ſame many and
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              no ſmall difficulties, (and yet it would be neceſſary, that the
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              mary principles and fundamentals, were certain, firm, and
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              ed, that ſo they might with more confidence be built upon) it
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              would not be amiſs, before we farther multiply doubts, to ſee if
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              haply (as I conjecture) betaking our ſelves to other waies, we may
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              not light upon a more direct and ſecure method; and with better
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              conſidered principles of Architecture lay our primary
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              tals. </s>
              <s>Therefore ſuſpending for the preſent the method of
                <emph type="italics"/>
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              tle,
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              (which we will re-aſſume again in its proper place, and
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              cularly examine;) I ſay, that in the things hitherto affirmed by
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                <arrow.to.target n="marg24"/>
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              him, I agree with him, and admit that the World is a body
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              ing all dimenſions, and therefore moſt perfect; and I add, that as
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              ſuch, it is neceſſarily moſt ordinate, that is, having parts between
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              themſelves, with exquiſite and moſt perfect order diſpoſed; which
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              aſſumption I think is not to be denied, neither by you or any
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              other.</s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              The circular line
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              perfect, according
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              to
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              Ariſtotle,
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              and
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              but the right
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              perfect, and why.
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              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              The world is
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              poſed by the
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              thor to be perfectly
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              ordinate.
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              </s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>Who can deny it? </s>
              <s>the firſt particular (of the worlds
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              dimenſions) is taken from
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              Ariſtotle
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              himſelf, and its
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              on of ordinate ſeems onely to be aſſumed from the order which it
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              moſt exactly
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                <arrow.to.target n="marg25"/>
              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              Streight motion
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              impoſſible in the
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              world exactly
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              dinate.
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              </s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>This principle then eſtabliſhed, one may immediately
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              conclude, that if the entire parts of the World ſhould be by their
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              nature moveable, it is impoſſible that their motions ſhould be
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              right, or other than circular; and the reaſon is ſufficiently eaſie,
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              and manifeſt; for that whatſoever moveth with a right motion,
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              changeth place; and continuing to move, doth by degrees more
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              and more remove from the term from whence it departed, and
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              from all the places thorow which it ſucceſſively paſſed; and if
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              ſuch motion naturally ſuited with it, then it was not at the
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              ginning in its proper place; and ſo the parts of the World were
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              not diſpoſed with perfect order. </s>
              <s>But we ſuppoſe them to be
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              fectly ordinate, therefore as ſuch, it is impoſſible that they ſhould
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              by nature change place, and conſequently move in a right moti­</s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg26"/>
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              on. </s>
              <s>Again, the right motion being by nature infinite, for that
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              the right line is infinite and indeterminate, it is impoſſible that
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                <arrow.to.target n="marg27"/>
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              any moveable can have a natural principle of moving in a right
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              line; namely toward the place whither it is impoſſible to arrive,
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                <arrow.to.target n="marg28"/>
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              there being no præ-ſinite term; and nature, as
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              Ariſtotle
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              himſelf
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              ſaith well, never attempts to do that which can never be done, </s>
            </p>
          </chap>
        </body>
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    </archimedes>
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