Galilei, Galileo, The systems of the world, 1661

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="065/01/079.jpg" pagenum="73"/>
              do ask the queſtion ſeriouſly; and therefore anſwer me: and if
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              afterwards you ſhall think that I ſpeak impertinently, I will be
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              content to be the ſenſeleſs man: for he is much more a fool who
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              interrogates ſimply, than he to whom the queſtion is put.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>If then you do not think me altogether ſimple, take
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              it for granted that I have anſwered you already, and ſaid, that it
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              is impoſſible, that one that is upon the Earth, as we are, ſhould ſee
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              by night that part of the Earth where it is day, namely, that is
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              luminated by the Sun.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Therefore you have never ſeen the Earth enlightned,
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              ſave onely by day; but you ſee the Moon to ſhine alſo in the
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              dead of night. </s>
              <s>And this is the cauſe,
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              which makes
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              you believe that the Earth doth not ſhine like the Moon; but if
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              you could ſee the Earth illuminated, whilſt you were in ſome dark
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              place, like our night, you would ſee it ſhine brighter than the
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              Moon. </s>
              <s>Now if you deſire that the compariſon may proceed
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              well, you muſt compare the light of the Earth, with that of the
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              Moon ſeen in the day time, and not with the ſame by night: for
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              it is not in our power to ſee the Earth illuminated, ſave onely in
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              the day. </s>
              <s>Is it not ſo?</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>So it ought to be.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>And foraſmuch as you your ſelf have already confeſſed
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              to have ſeen the Moon by day among ſome little white Clouds,
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              and very nearly, as to its aſpect, reſembling one of them; you did
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                <arrow.to.target n="marg189"/>
                <lb/>
              thereby grant, that thoſe Clouds, which yet are Elementary
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              matters, are as apt to receive illumination, as the Moon, yea
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              more, if you will but call to mind that you have ſometimes ſeen
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              ſome Clouds of vaſt greatneſs, and as perfect white as the Snow;
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              and there is no queſtion, but that if ſuch a Cloud could be
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              tinued ſo luminous in the deep of night, it would illuminate the
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              places near about it, more than an hundred Moons. </s>
              <s>If therefore
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              we were aſſured that the Earth is illuminated by the Sun, like one
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              of thoſe Clouds, it would be undubitable, but that it would be no
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              leſs ſhining than the Moon. </s>
              <s>But of this there is no queſtion to
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              be made, in regard we ſee thoſe very Clouds in the abſence of
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              the Sun, to remain by night, as obſcure as the Earth: and that
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              which is more, there is not any one of us, but hath ſeen many
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              times ſome ſuch Clouds low, and far off, and queſtioned whether
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              they were Clouds or Mountains: an evident ſign that the
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              tains are no leſs luminous than thoſe
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                <arrow.to.target n="marg190"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg189"/>
                <emph type="italics"/>
              Clouds are no leſs
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              apt than the Moon
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              to be illuminated
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              by the Sun.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg190"/>
                <emph type="italics"/>
              A wall
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              ted by the Sun,
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              compared to the
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              Moon ſhineth no
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              leſs than it.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>But what needs more diſcourſe? </s>
              <s>See yonder the Moon
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              is riſen, and more than half of it illuminated; ſee there that wall,
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              on which the Sun ſhineth; retire a little this way, ſo that you ſee
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              the Moon ſideways with the wall: look now; which of them
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              ſhews more lucid? </s>
              <s>Do not you ſee, that if there is any advantage, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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