SIMPL. It may, in caſe the Ship were incorruptible, but the
Ship decaying, the Navigation muſt of neceſſity come to an end.
Ship decaying, the Navigation muſt of neceſſity come to an end.
SALV. But in the Mediterrane, though the Veſſel were
ruptible, yet could ſhe not ſail perpetually towards Paleſtina, that
Voyage being determined. Two things then are required, to the
end a moveable may without intermiſſion move perpetually; the
one is, that the motion may of its own nature be indeterminate and
infinite; the other, that the moveable be likewiſe incorruptible
and eternal.
ruptible, yet could ſhe not ſail perpetually towards Paleſtina, that
Voyage being determined. Two things then are required, to the
end a moveable may without intermiſſion move perpetually; the
one is, that the motion may of its own nature be indeterminate and
infinite; the other, that the moveable be likewiſe incorruptible
and eternal.
Two things
quiſite to the end a
motion may
petuate it ſelf; an
unlimited ſpace,
and an
ble moveable.
quiſite to the end a
motion may
petuate it ſelf; an
unlimited ſpace,
and an
ble moveable.
SIMPL. All this is neceſſary.
SALV. Therefore you may ſee how of your own accord you
have confeſſed it impoſſible that any moveable ſhould move
nally in a right line, in regard that right motion, whether it be
wards, or downwards, is by you your ſelf bounded by the
ference and centre; ſo that if a Moveable, as ſuppoſe the Earth
be eternal, yet foraſmuch as the right motion is not of its own
ture eternall, but moſt ^{*}terminate, it cannot naturally ſuit with
the Earth. Nay, as was ſaid ^{*} yeſterday, Ariſtotle himſelf is
conſtrained to make the Terreſtrial Globe eternally immoveable.
When again you ſay, that the parts of the Earth evermore move
downwards, all impediments being removed, you egregiouſly
vocate; for then, on the other ſide they muſt be impeded,
ried, and forced, if you would have them move; for, when they
are once fallen to the ground, they muſt be violently thrown
wards, that they may a ſecond time fall; and as to the
ments, theſe only hinder its arrival at the centre; but if there were
a Well, that did paſſe thorow and beyond the centre, yet would not
a clod of Earth paſſe beyond it, unleſſe inaſmuch as being
ported by its impetus, it ſhould paſſe the ſame to return thither
gain, and in the end there to reſt. As therefore to the defending,
that the motion by a right line doth or can agree naturally neither
to the Earth, nor to any other moveable, whil'ſt the Univerſe
taineth its perfect order, I would have you take no further paines
bout it, but (unleſſe you will grant them the circular motion)
your beſt way will be to defend and maintain their immobility.
have confeſſed it impoſſible that any moveable ſhould move
nally in a right line, in regard that right motion, whether it be
wards, or downwards, is by you your ſelf bounded by the
ference and centre; ſo that if a Moveable, as ſuppoſe the Earth
be eternal, yet foraſmuch as the right motion is not of its own
ture eternall, but moſt ^{*}terminate, it cannot naturally ſuit with
the Earth. Nay, as was ſaid ^{*} yeſterday, Ariſtotle himſelf is
conſtrained to make the Terreſtrial Globe eternally immoveable.
When again you ſay, that the parts of the Earth evermore move
downwards, all impediments being removed, you egregiouſly
vocate; for then, on the other ſide they muſt be impeded,
ried, and forced, if you would have them move; for, when they
are once fallen to the ground, they muſt be violently thrown
wards, that they may a ſecond time fall; and as to the
ments, theſe only hinder its arrival at the centre; but if there were
a Well, that did paſſe thorow and beyond the centre, yet would not
a clod of Earth paſſe beyond it, unleſſe inaſmuch as being
ported by its impetus, it ſhould paſſe the ſame to return thither
gain, and in the end there to reſt. As therefore to the defending,
that the motion by a right line doth or can agree naturally neither
to the Earth, nor to any other moveable, whil'ſt the Univerſe
taineth its perfect order, I would have you take no further paines
bout it, but (unleſſe you will grant them the circular motion)
your beſt way will be to defend and maintain their immobility.
Right motion
cannot be eternal,
and conſequently
cannot be natural
to the Earth.
cannot be eternal,
and conſequently
cannot be natural
to the Earth.
* Terminatiſſimo.
* By this
on he every where
means the
ding Dialogue, or
Giornata.
on he every where
means the
ding Dialogue, or
Giornata.
SIMPL. As to their immoveableneſſe, the arguments of
ſtotle, and moreover thoſe alledged by your ſelf ſeem in my
on neceſſarily to conclude the ſame, as yet; and I conceive it will
be a hard matter to refute them.
ſtotle, and moreover thoſe alledged by your ſelf ſeem in my
on neceſſarily to conclude the ſame, as yet; and I conceive it will
be a hard matter to refute them.
SALV. Come we therefore to the ſecond Argument, which was,
That thoſe bodies, which we are aſſured do move circularly, have
more than one motion, unleſſe it be the Primum Mobile; and
therefore, if the Earth did move circularly, it ought to have two
motions; from which alterations would follow in the riſing and
ſetting of the Fixed Stars: Which effect is not perceived to enſue.
That thoſe bodies, which we are aſſured do move circularly, have
more than one motion, unleſſe it be the Primum Mobile; and
therefore, if the Earth did move circularly, it ought to have two
motions; from which alterations would follow in the riſing and
ſetting of the Fixed Stars: Which effect is not perceived to enſue.
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