Galilei, Galileo, The systems of the world, 1661

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    <archimedes>
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              <s>
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              that to move towards this, is a moving towards that of the World,
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              that he cannot affirm, unleſs he ſuppoſeth, That the Centre of the
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              Earth, from which we ſee theſe light aſcendent bodies to depart,
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              be the ſame with the Centre of the World; which is as much as
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              to ſay, that the terreſtrial Globe is conſtituted in the midſt of the
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              World: which is yet that of which we were in doubt, and which
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                <emph type="italics"/>
              Aristotle
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              intended to prove. </s>
              <s>And do you ſay that this is not a
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                <arrow.to.target n="marg71"/>
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              manifeſt
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              Paralogiſm
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              ?</s>
            </p>
            <p type="margin">
              <s>
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              * A famous
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              Italian
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              Painter.</s>
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            <p type="margin">
              <s>
                <margin.target id="marg70"/>
                <emph type="italics"/>
              Paralogiſm of
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              riſtotle,
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              in proving
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              the Earth to be in
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              the Centre of the
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              World.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg71"/>
                <emph type="italics"/>
              The Paralogiſme
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              of
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              Ariſtotle
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              another
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              way diſcovered.
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              </s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>This Argument of
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              Ariſtotle
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              appeared to me deficient
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              alſo, and
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              non
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              -concludent for another reſpect; though it were
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              granted, that that Circumference, to which the Fire directly
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              veth, be that which includeth the World: for that in a circle,
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              not onely the centre, but any other point being taken, every
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              able which departing thence, ſhall move in a right line, and
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              wards any whatſoever part, ſhall without any doubt go towards
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              the circumference, and continuing the motion, ſhall alſo arrive
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              thither; ſo that we may truly ſay, that it moveth towards the
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              circumference: but yet it doth not follow, that that which
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              veth by the ſame line with a contrary motion, would go towards
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              the centre, unleſs when the point taken were the centre it ſelf,
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              or that the motion were made by that onely line, which produced
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              from the point aſſigned, paſſeth thorow the centre. </s>
              <s>So that to
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              ſay, that Fire moving in a right line, goeth towards the
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              rence of the World, therefore the parts of the Earth which by
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              the ſame lines move with a contrary motion, go towards the
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              tre of the World, concludeth not, unleſs then when it is
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              ſuppoſed, that the lines of the Fire prolonged paſs by the centre
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              of the World; and becauſe we know certainly of them, that they
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              paſs by the centre of the Terreſtrial Globe (being
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              lar to its ſuperficies, and not inclined) therefore to conclude, it
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              muſt be ſuppoſed, that the centre of the Earth is the ſame with
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              the centre of the World; or at leaſt, that the parts of the Fire
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              and Earth deſcend not, ſave onely by one ſole line which paſſeth
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              by the centre of the World. </s>
              <s>Which nevertheleſs is falſe, and
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              pugnant to experience, which ſheweth us, that the parts of
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              Fire, not by one line onely, but by infinite, produced from the
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              centre of the Earth towards all the parts of the World, aſcend
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              always by lines perpendicular to the Superficies of the
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              al Globe.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>You do very ingeniouſly lead
                <emph type="italics"/>
              Ariſtotle
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              to the ſame
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              convenience,
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              Sagredus,
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              ſhewing his manifeſt equivoke; but
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              withal you add another inconſiſtency. </s>
              <s>We ſee the Earth to be
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              ſpherical, and therefore are certain that it hath its centre, to which
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              we ſee all its parts are moved; for ſo we muſt ſay, whilſt their
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              motions are all perpendicular to the Superficies of the Earth; we </s>
            </p>
          </chap>
        </body>
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    </archimedes>
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