Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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              <s>SAGR. </s>
              <s>But this would be to draw a further inconvenience
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              on himſelf, in that he holdeth, that the bare eye cannot be
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              ved in judging of the right motion of deſcending graves, and yet
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              holds that it is deceived in beholding theſe other motions at ſuch
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              time as its viſive vertue is perfected, and augmented to thirty times
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              as much as it was before. </s>
              <s>We tell him therefore, that the Earth in
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              like manner partaketh of the plurality of motions: and it is
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              haps the ſame, whereby the Loadſtone hath its motion
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              wards, as grave, and two circular motions, one Horizontal, and the
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              other Vertical under the Meridian. </s>
              <s>But what more; tell me,
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              plicius,
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              between which do you think this Author would put a
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              greater difference, 'twixt right and circular motion, or 'twixt
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              on and reſt?</s>
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              <s>SIMP. 'Twixt motion and reſt, certainly. </s>
              <s>And this is
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              feſt, for that circular motion is not contrary to the right, according
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              to
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              Aristotle
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              ; nay, he granteth that they may mix with each
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              ther; which it is impoſſible for motion and reſt to do.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              Motion and reſt
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              are more different
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              than right motion
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              and circular.
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              </s>
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              <s>SAGR. </s>
              <s>Therefore its a propoſition leſſe improbable to place
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              in one natural body two internal principles, one to right motion,
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              and the other to circular, than two ſuch interne principles one to
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              motion, and the other to reſt. </s>
              <s>Now both theſe poſitions agree to
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              the natural inclination that reſideth in the parts of the Earth to
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              turn to their whole, when by violence they are divided from it;
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              and they onely diſſent in the operation of the whole: for the
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              ter of them will have it by an interne principle to ſtand ſtill, and
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              the former aſcribeth to it the circular motion. </s>
              <s>But by your
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              ceſſion, and the confeſſion of this Philoſopher, two principles, one
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              to motion, and the other to reſt, are incompatible together, like as
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              their effects are incompatible: but now this evenes not in the two
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              motions, right, and circular, which have no repugnance to each
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              other.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              One may more
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              rationally aſcribe
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              to the Earth two
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              internal principles
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              to the right, and
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              circular motion,
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              than two to motion
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              and reſt.
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              </s>
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              <s>SALV. </s>
              <s>Adde this more, that in all probability it may be that
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              the motion, that the part of the Earth ſeparated doth make whilſt
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              it returneth towards its whole, is alſo circular, as hath been
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              dy declared; ſo that in all reſpects, as far as concernes the preſent
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              caſe, Mobility ſeemeth more likely than Reſt. </s>
              <s>Now proceed,
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                <emph type="italics"/>
              Simplicius,
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              to what remains.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              The motion of
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              the parts of the
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              Earth returning to
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              their whole may be
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              circular.
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              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>The Authour backs his Argument with producing
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              ther abſurdity, that is, that the ſame motions agree to Natures
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              treamly different; but experience ſheweth, that the operations
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              and motions of different natures, are different; and Reaſon
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              firmeth the ſame: for otherwiſe we ſhould have no way left to
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              know and diſtinguiſh of natures, if they ſhould not have their
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              particular motions and operations, that might guide us to the
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              knowledge of their ſubſtances.</s>
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          </chap>
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