1the ſame Time; and we ſee the Time of the Deſcent from the grea
ter altitude to be longer.
ter altitude to be longer.
SAGR. This is too great an Evidence, too great a Facility
wherewith you manifeſt abſtruce Concluſions: this extream eaſi
neſs rendreth them of leſſe value than they were whilſt they lay hid
under contrary appearances. I believe that the Generality of men
little preſſe thoſe Notions which are eaſily obtained, in compari
ſon of thoſe about which men make ſo long and inexplicable alter
cations.
wherewith you manifeſt abſtruce Concluſions: this extream eaſi
neſs rendreth them of leſſe value than they were whilſt they lay hid
under contrary appearances. I believe that the Generality of men
little preſſe thoſe Notions which are eaſily obtained, in compari
ſon of thoſe about which men make ſo long and inexplicable alter
cations.
SALV. To thoſe which with great brevity and clarity ſhew the
fallacies of Propoſitions that have been commonly received for
true by the generality of people, it would be a very tolerable in
jury to return them only ſlighting inſtead of thanks: but there is
much diſpleaſure and moleſtation in another certain affection
ſometimes found in ſome men, that pretending in the ſame Studies
at leaſt Parity with any whomſoever, do ſee that they have let
paſs ſuch and ſuch for true Concluſions, which afterwards by
another, with a ſhort and eaſie diſquiſition, have been detected and
convicted for falſe. I will not call that affection Envy, that is ac
cuſtomed to convert in time to hatred and deſpite againſt the diſ
coverers of ſuch Fallacies, but I will call it an itch, and a deſire to
be able rather to maintain their inveterate Errours, than to per
mit the reception of new-diſcovered Truths. Which humour ſome
times induceth them to write in contradiction of thoſe truths
which are but too perfectly known unto themſelves only to keep
the Reputation of others low in the opinion of the numerous and
ill-informed Vulgar. Of ſuch falſe Concluſions received for true,
and very eaſie to be confuted, I have heard no ſmall number from
our Academick, of ſome of which I have kept account.
fallacies of Propoſitions that have been commonly received for
true by the generality of people, it would be a very tolerable in
jury to return them only ſlighting inſtead of thanks: but there is
much diſpleaſure and moleſtation in another certain affection
ſometimes found in ſome men, that pretending in the ſame Studies
at leaſt Parity with any whomſoever, do ſee that they have let
paſs ſuch and ſuch for true Concluſions, which afterwards by
another, with a ſhort and eaſie diſquiſition, have been detected and
convicted for falſe. I will not call that affection Envy, that is ac
cuſtomed to convert in time to hatred and deſpite againſt the diſ
coverers of ſuch Fallacies, but I will call it an itch, and a deſire to
be able rather to maintain their inveterate Errours, than to per
mit the reception of new-diſcovered Truths. Which humour ſome
times induceth them to write in contradiction of thoſe truths
which are but too perfectly known unto themſelves only to keep
the Reputation of others low in the opinion of the numerous and
ill-informed Vulgar. Of ſuch falſe Concluſions received for true,
and very eaſie to be confuted, I have heard no ſmall number from
our Academick, of ſome of which I have kept account.
SAGR. And you muſt not deprive us of them; but in due time
impart them to us, when a particular Meeting ſhall be appointed
for them. For the preſent, continuing the diſcourſe we are about,
I think that by this time we have eſtabliſhed the Definition of Mo
tion uniformly Accelerate, treated of in the enſuing diſcourſes,
and it is this;
impart them to us, when a particular Meeting ſhall be appointed
for them. For the preſent, continuing the diſcourſe we are about,
I think that by this time we have eſtabliſhed the Definition of Mo
tion uniformly Accelerate, treated of in the enſuing diſcourſes,
and it is this;
A Motion Equable, or Vniformly Accelerate, we call that which
departing from Reſt ſuperadds equal Moments of Velocity in
equal Times.
departing from Reſt ſuperadds equal Moments of Velocity in
equal Times.
SALV. That Definition being confirmed, the Author asketh
and ſuppoſeth but one only Principle to be true, namely:
and ſuppoſeth but one only Principle to be true, namely: