Galilei, Galileo, The systems of the world, 1661

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              <s>
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              mean, that as they move to the centre of the Earth, they move to
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              their
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              Whole,
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              and to their Univerſal Mother: and we are ſtill
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              ther ſo free, that we will ſuffer our ſelves to be perſwaded, that
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                <arrow.to.target n="marg72"/>
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              their natural inſtinct is, not to go towards the centre of the Earth,
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              but towards that of the Univerſe; which we know not where to
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              find, or whether it be or no; and were it granted to be, it is but
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              an imaginary point, and a nothing without any quality. </s>
              <s>As to
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              what
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              Simplicius
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              ſaid laſt, that the contending whether the parts
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              of the Sun, Moon, or other cœleſtial Body, ſeparated from their
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                <emph type="italics"/>
              Whole,
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              ſhould naturally return to it, is a vanity, for that the caſe
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              is impoſſible; it being clear by the Demonſtrations of
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              Ariſtotle,
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              that the cœleſtial Bodies are impaſſible, impenetrable,
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                <arrow.to.target n="marg73"/>
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              ble,
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              &c.
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              I anſwer, that none of the conditions, whereby
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              tle
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              diſtinguiſheth the Cœleſtial Bodies from Elementary, hath
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              ther foundation than what he deduceth from the diverſity of the
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              natural motion of thoſe and theſe; inſomuch that it being
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              ed, that the circular motion is peculiar to Cœleſtial Bodies, and
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              affirmed, that it is agreeable to all Bodies naturally moveable, it
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              is behoofull upon neceſſary conſequence to ſay, either that the
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              attributes of generable, or ingenerable, alterable, or unalterable,
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              partable, or unpartable,
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              &c.
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              equally and commonly agree with
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              all worldly bodies, namely, as well to the Cœleſtial as to the
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              lementary; or that
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              Ariſtotle
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              hath badly and erroneouſly
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              ced thoſe from the circular motion, which he hath aſſigned to
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              leſtial Bodies.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              Grave bodies may
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              more rationally be
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              affirmed to tend to
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              the Centre of the
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              Earth, than of the
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              Vniverſe.
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              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              The conditions and
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              attributes which
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              differ the cœleſtial
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              bodies from
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              mentary, depend on
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              the motions
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              ed them by
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              Ariſt.</s>
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            <p type="main">
              <s>SIMPL. </s>
              <s>This manner of argumentation tends to the
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              on of all Natural Philoſophy, and to the diſorder and ſubverſion
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              of Heaven and Earth, and the whole Univerſe; but I believe the
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              Fundamentals of the
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              Peripateticks
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              are ſuch, that we need not
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              fear that new Sciences can be erected upon their ruines.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Take no thought in this place for Heaven or the Earth,
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              neither fear their ſubverſion, or the ruine of Philoſophy. </s>
              <s>As to
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              Heaven, your fears are vain for that which you your ſelf hold
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              unalterable and impaſſible; as for the Earth, we ſtrive to enoble
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              and perfect it, whilſt we make it like to the Cœleſtial Bodies,
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              and as it were place it in Heaven, whence your Philoſophers have
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              exiled it. </s>
              <s>Philoſophy it ſelf cannot but receive benefit from our
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              Diſputes, for if our conceptions prove true, new Diſcoveries will
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              be made; if falſe, the firſt Doctrine will be more confirmed.
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              </s>
              <s>Rather beſtow your care upon ſome Philoſophers, and help and
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              defend them; for as to the Science it ſelf, it cannot but improve.
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              </s>
              <s>And that we may return to our purpoſe, be pleaſed freely to
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              duce what preſents it ſelf to you in confirmation of that great
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              ference which
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              Ariſtotle
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              puts between the Cœleſtial Bodies, and
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              the Elementary parts of the World, in making thoſe ingenerable, </s>
            </p>
          </chap>
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