Galilei, Galileo, The systems of the world, 1661

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            <p type="main">
              <s>
                <pb xlink:href="065/01/014.jpg" pagenum="8"/>
              if not ſo, then the ſuppoſion of
                <emph type="italics"/>
              Ariſtotle
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              is defective. </s>
              <s>It appears
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                <arrow.to.target n="marg21"/>
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              moreover that
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              Ariſtotle
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              hinteth but one circular motion alone to
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              be in the World, and conſequently but one onely Center, to
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              which alone the motions of upwards and downwards, refer. </s>
              <s>All
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              which are apparent proofs, that
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              Ariſtotles
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              aim is, to make white
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              black, and to accommodate
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              Architectur
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              to the building, and not
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              to modle the building according to the precepts of
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              Arthitecture:
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                <lb/>
              for if I ſhould ſay that Nature in Univerſal may have a
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              ſand Circular Motions, and by conſequence a thouſand
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              ters, there would be alſo a thouſand motions upwards, and
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              downwards. </s>
              <s>Again he makes as hath been ſaid, a ſimple motion,
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              and a mixt motion, calling ſimple, the circular and right; and
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              mixt, the compound of them two: of natural bodies he calls ſome
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              ſimple (namely thoſe that have a natural principle to ſimple
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              tion) and others compound: and ſimple motions he attributes
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              to ſimple bodies, and the compounded to the compound; but by
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              compound motion he doth no longer underſtand the mixt of right
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              and circular, which may be in the World; but introduceth a mixt
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              motion as impoſſible, as it is impoſſible to mixe oppoſite motions
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              made in the ſame right line, ſo as to produce from them a motion
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              partly upwards, partly downwards; and, to moderate ſuch an
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              ſurdity, and impoſſibility, he aſſerts that ſuch mixt bodies move
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                <arrow.to.target n="marg22"/>
                <lb/>
              according to the ſimple part predominant: which neceſſitates
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              others to ſay, that even the motion made by the ſame right line is
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              ſometimes ſimple, and ſometimes alſo compound: ſo that the
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              plicity of the motion, is no longer dependent onely on the
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              plicity of the line.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg20"/>
                <emph type="italics"/>
              The Helix about
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              the Cylinder may
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              be ſaid to be a
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              ple line.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg21"/>
              Ariſtotle
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                <lb/>
              modates the rules of
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              Architecture
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              to
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              the frame of the
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              World, and not the
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              frame to the rules.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg22"/>
                <emph type="italics"/>
              Right motion,
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              times ſimple, ard
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              ſometimes mixt
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              cording to
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              Ariſt.</s>
            </p>
            <p type="main">
              <s>SIMPL. How? </s>
              <s>Is it not difference ſufficient, that the ſimple and
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              abſolute are more ſwift than that which proceeds from
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              nion? </s>
              <s>and how much faſter doth a piece of pure Earth deſcend,
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              than a piece of Wood?</s>
            </p>
            <p type="main">
              <s>SAGR. Well,
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              Simplicius
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              ; But put caſe the ſimplicity for this
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              cauſe was changed, beſides that there would be a hundred
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              ſand mixt motions, you would not be able to determine the
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              ple; nay farther, if the greater or leſſe velocity be able to alter
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              the ſimplicity of the motion, no ſimple body ſhould move with a
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              ſimple motion; ſince that in all natural right motions, the
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              ty is ever encreaſing, and by conſequence ſtill changing the
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              city, which as it is ſimplicity, ought of conſequence to be
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              table, and that which more importeth, you charge
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              Ariſtotle
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              with
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              another thing, that in the definition of motions compounded, he
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              hath not made mention of tardity nor velocity, which you now
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              inſert for a neceſſary and eſſential point. </s>
              <s>Again you can draw
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              no advantage from this rule, for that there will be amongſt the
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              mixt bodies ſome, (and that not a few) that will move ſwiftly, </s>
            </p>
          </chap>
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    </archimedes>
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