Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667
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              poſſible, which again never is.) But here ſtarts up another diffi­
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              culty, and it is, That though Experience aſſures me of the truth of
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              the Concluſion, yet my Judgment is not thorowly ſatisfied of the
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              Cauſe, to which ſuch an effect may be aſcribed. </s>
              <s>For as much as
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              the effect of the Seperation of the two Plates, is in time before the
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              Vacuity which ſhould ſucceed by conſequence upon the Separa­
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              tion. </s>
              <s>And becauſe, in my opinion, the Cauſe ought, if not in
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              Time, at leaſt in Nature, to precede the Effect: and that of a Po­
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              ſitive Effect, the Cauſe ought alſo to be Poſitive; I cannot con­
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              ceive, how the Cauſe of the Adheſion of the two Plates, and of
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              their Repugnance to Separation, (Effects that are already in
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              Act) ſhould be aſſigned to Vacuity, which yet is not, but ſhould
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              follow. </s>
              <s>And of things that are not in being, there can be no Ope­
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              ration; according to the infallible Maxime of Philoſophy.</s>
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              Vacuity partly the
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              cauſe of the Cohe­
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              rence between the
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              parts of Solids.
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              Of a Poſitive Ef­
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              fect the Cauſe is
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              Poſitive.
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              Non-entity is at­
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              tended with Non­
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              operation.
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              <s>SIMP. </s>
              <s>But ſince you grant
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              Ariſtotle
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              this Axiome, I do not
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              think you will deny another that is moſt excellent, and true; to
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              wit, That Nature doth not attempt Impoſſibilities: Upon which
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              Axiom I think the Solution of our doubt depends: becauſe there­
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              fore a void ſpace is of it ſelf impoſſible, Nature forbids the doing
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              that, in conſequence of which Vacuity would neceſſarily ſucceed;
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              and ſuch an act is the ſeparation of the two Plates.</s>
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              Nature doth not
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              attempt Impoſſibi­
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              lities.
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              <s>SAGR. Now, (admitting this which
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              Simplicius
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              alledgeth is a
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              ſufficient Solution of my Doubt) in perſuance of the diſcourſe
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              with which I began, it ſeemeth to me, that this ſame Repugnance
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              to Vacuity ſhould be a ſufficient Cement in the parts of a Solid of
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              Stone, Metal, or what other ſubſtance is more firmly conjoyned,
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              and averſe to Diviſion. </s>
              <s>For if a ſingle Effect, hath but one ſole
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              Cauſe, as I underſtand, and think; or if many be aſſigned, they
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              are reducible to one alone: why ſhould not this of Vacuity, which
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              certainly is one, be ſufficient to anſwer all Reſiſtances?</s>
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              <s>SALV. </s>
              <s>I will not at this time enter upon this conteſt, whether
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              Vacuity, without other Cement, be in it ſelf alone ſufficient to
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              keep together the ſeparable parts of firm Bodies; but yet this I
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              ſay, that the Reaſon of the Vacuity, which is of force, and con­
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              oluding in the two Plates, ſufficeth not of it ſelf alone for the
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              firm connection of the parts of a ſolid Cylinder of Marble, or
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              Metal, the which forced with great violence, pulling them ſtreight
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              out, in fine, divide and ſeparate. </s>
              <s>And in caſe I have found a way
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              to diſtinguiſh this already-known Reſiſtance dependent on Va­
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              ouity, from all others whatſoever that may concur with it in
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              ſtrengthening the Connection, and make you ſee how that it alone
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              is not neer ſufficient for ſuch an Effect, would not you grant that
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              it would be neceſſary to introduce ſome other? </s>
              <s>Help him out,
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              Sim­
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              plicius,
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              for he ſtands ſtudying what to anſwer.</s>
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              <s>SIMP. </s>
              <s>The Suſpenſion of
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              Sagredus
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              muſt needs be upon ano­</s>
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