Galilei, Galileo
,
The systems of the world
,
1661
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incorruptible, unalterable,
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&c.
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and this corruptible, alterable,
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&c.
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The diſputes and
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contradictions of
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Philoſophers may
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conduce to the
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benefit of
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phy.
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>SIMPL. </
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>I ſee not yet any need that
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Ariſtotle
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hath of help,
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ſtanding as he doth ſtoutly and ſtrongly on his feet; yea not
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ing yet aſſaulted, much leſs foiled by you. </
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<
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>And what ward will
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you chooſe in this combate for this firſt blow?
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Aristotle
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writeth,
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that whatever is generated, is made out of a contrary in ſome
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ſubject, and likewiſe is corrupted in ſome certain ſubject from a
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contrary into a contrary; ſo that (obſerve) corruption and
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neration is never but onely in contraries; If therefore to a
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leſtial Body no contrary can be aſſigned, for that to the circular
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motion no other motion is contrary, then Nature hath done very
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well to make that exempt from contraries, which was to be
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generable and incorruptible, This fundamental firſt confirmed,
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it immediately followeth of conſequence, that it is
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ble, inalterable, impaſſible, and finally eternal, and a
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tionate habitation to the immortal Deities, conformable to the
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opinion even of all men that have any conceit of the Gods. </
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afterwards confirmeth the ſame by ſenſe; in regard, that in all
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times paſt, according to memory or tradition, we ſee nothing
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moved, according to the whole outward Heaven, nor any of its
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proper parts. </
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<
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>Next, as to the circular motion, that no other is
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contrary to it,
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Aristotle
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proveth many ways; but without
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ting them all, it is ſufficiently demonſtrated, ſince fimple motions
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are but three, to the
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medium,
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from the
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medium,
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and about the
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medium,
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of which the two right,
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ſurſum
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and
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deorſum,
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are
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feſtly contrary; and becauſe one onely hath onely one for
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trary, therefore there reſts no other motion which may be
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ry to the circular. </
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<
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>You ſee the ſubtle and moſt concluding
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courſe of
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Ariſtotle,
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whereby he proveth the incorruptibility of
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Heaven.</
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Ariſtotles
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diſcourſe
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to prove the
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ruptibility of
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ven.
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Generation &
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ruption is onely
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mongſt contraries,
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according to
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Ariſt.</
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To the circular
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motion no other
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motion is contrary.
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Heaven an
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tation for the
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ortal Gods.
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Immutability of
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Heaven evident to
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ſexſe.
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He proveth that
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the circular motion
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hath no contrary.
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<
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>SALV. </
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<
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>This is nothing more, ſave the pure progreſs of
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tle,
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by me hinted before; wherein, beſides that I affirm, that the
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motion which you attribute to the Cœleſtial Bodies agreeth alſo
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to the Earth, its illation proves nothing. </
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<
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>I tell you therefore,
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that that circular motion which you aſſign to Cœleſtial Bodies,
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ſuiteth alſo to the Earth, from which, ſuppoſing that the reſt of
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your diſcourſe were concludent, will follow one of theſe three
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things, as I told you a little before, and ſhall repeat; namely,
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either that the Earth it ſelf is alſo ingenerable, and incorruptible,
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as the Cœleſtial bodies; or that the Cœleſtial bodies are, like as
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the Elementary generable, alterable &c. </
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<
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>or that this difference of
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motion hath nothing to do with Generation and Corruption.
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<
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>The diſcourſe of
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Ariſtotle,
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and yours alſo contain many
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tions not to be lightly admitted, and the better to examine them,
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it will be convenient to reduce them to the moſt abſtracted and </
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