Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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The diverſity of
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motions helpeth us
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in knowing the
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verſity of natures.
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<
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>SAGR. </
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>I have twice or thrice obſerved in the diſcourſes of this
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Authour, that to prove that a thing is ſo, or ſo, he ſtill alledgeth,
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that in that manner it is conformable with our underſtanding; or
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that otherwiſe we ſhould never be able to conceive of it; or that
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the
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Criterium
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of Philoſophy would be overthrown. </
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>As if that
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ture had firſt made mens brains, and then diſpoſed all things in
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conformity to the capacity of their intellects. </
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>But I incline rather
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to think that Nature firſt made the things themſelves, as ſhe beſt
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liked, and afterwards framed the reaſon of men capable of
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ceiving (though not without great pains) ſome part of her
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crets.</
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Nature firſt
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made things as ſhe
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pleaſed, and
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wards capacitated
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mens
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ings for conceiving
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of them.
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<
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>SALV. </
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<
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>I am of the ſame opinion. </
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>But tell me,
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Simplicius,
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which are theſe different natures, to which, contrary to
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rience and reaſon,
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Copernicus
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aſſignes the ſame motions and
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rations.</
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>SIMP. </
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>They are theſe. </
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>The Water, the Air, (which
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leſſe are Natures different from the Earth) and all things that
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are in thoſe elements compriſed, ſhall each of them have thoſe
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three motions, which
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Copernicus
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pretends to be in the Terreſtriall
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Globe; and my Authour proceedeth to demonſtrate
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cally, that, according to the
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Copernican
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Doctrine, a cloud that is
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ſuſpended in the Air, and that hangeth a long time over our
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heads without changing place, muſt of neceſſity have all thoſe three
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motions that belong to the Terreſtrial Globe. </
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<
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>The
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tion is this, which you may read your ſelf, for I cannot repeat it
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without book.</
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Copernicus
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roneouſly aſſigneth
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the ſame operations
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to different natures
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<
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>SALV. </
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>I ſhall not ſtand reading of it, nay I think it an
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tinency in him to have inſerted it, for I am certain, that no
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Copernican
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will deny the ſame. </
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<
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>Therefore admitting him what he
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would demonſtrate, let us ſpeak to the objection, which in my
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judgment hath no great ſtrength to conclude any thing contrary
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to the
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Copernican Hypotheſis,
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ſeeing that it derogates nothing from
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thoſe motions, and thoſe operations, whereby we come to the
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knowledge of the natures, &c. </
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<
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>Anſwer me, I pray you,
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us:
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Thoſe accidents wherein ſome things exactly concur, can
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they ſerve to inform us of the different natures of thoſe
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From commune
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accidents one
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not know different
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natures.
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<
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>SIMP. </
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<
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>No Sir: nay rather the contrary, for from the idendity
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of operations and of accidents nothing can be inferred, but an
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idendity of natures.</
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<
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>SALV. </
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<
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>So that the different natures of the Water, Earth, Air,
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and other things conteined in theſe Elements, is not by you
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ed from thoſe operations, wherein all theſe Elements and their
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fixes agree, but from other operations; is it ſo?</
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<
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>SIMP. </
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<
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>The very ſame.</
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<
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>SALV. </
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<
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>So that he who ſhould leave in the Elements all thoſe </
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