Page - 519 - in The Complete Aristotle
Image of the Page - 519 -
Text of the Page - 519 -
Physics, Book VII
Translated by R. P. Hardie and R. K. Gaye
<
div id=“section57” class=“section” title=“1”>
1
Everything that is in motion must be moved by something. For if it has not
the source of its motion in itself it is evident that it is moved by something
other than itself, for there must be something else that moves it. If on the
other hand it has the source of its motion in itself, let AB be taken to represent
that which is in motion essentially of itself and not in virtue of the fact that
something belonging to it is in motion. Now in the first place to assume that
AB, because it is in motion as a whole and is not moved by anything external
to itself, is therefore moved by itself-this is just as if, supposing that KL is
moving LM and is also itself in motion, we were to deny that KM is moved
by anything on the ground that it is not evident which is the part that is
moving it and which the part that is moved. In the second place that which is
in motion without being moved by anything does not necessarily cease from
its motion because something else is at rest, but a thing must be moved by
something if the fact of something else having ceased from its motion causes
it to be at rest. Thus, if this is accepted, everything that is in motion must be
moved by something. For AB, which has been taken to represent that which is
in motion, must be divisible since everything that is in motion is divisible. Let
it be divided, then, at G. Now if GB is not in motion, then AB will not be in
motion: for if it is, it is clear that AG would be in motion while BG is at rest,
and thus AB cannot be in motion essentially and primarily. But ex hypothesi
AB is in motion essentially and primarily. Therefore if GB is not in motion
AB will be at rest. But we have agreed that that which is at rest if something
else is not in motion must be moved by something. Consequently, everything
that is in motion must be moved by something: for that which is in motion
will always be divisible, and if a part of it is not in motion the whole must be
at rest.
Since everything that is in motion must be moved by something, let us take
the case in which a thing is in locomotion and is moved by something that is
itself in motion, and that again is moved by something else that is in motion,
and that by something else, and so on continually: then the series cannot go
519
back to the
book The Complete Aristotle"
The Complete Aristotle
- Title
- The Complete Aristotle
- Author
- Aristotle
- Date
- ~322 B.C.
- Language
- English
- License
- PD
- Size
- 21.0 x 29.7 cm
- Pages
- 2328
- Keywords
- Philosophy, Antique, Philosophie, Antike, Dialogues, Metaphysik, Metaphysics, Ideologie, Ideology, Englisch
- Categories
- Geisteswissenschaften
- International
Table of contents
- Part 1; Logic (Organon) 3
- Categories 4
- On Interpretation 34
- Prior Analytics, Book I 56
- Prior Analytics, Book II 113
- Posterior Analytics, Book I 149
- Posterior Analytics, Book II 193
- Topics, Book I 218
- Topics, Book II 221
- Topics, Book III 237
- Topics, Book IV 248
- Topics, Book V 266
- Topics, Book VI 291
- Topics, Book VII 317
- Topics, Book VIII 326
- On Sophistical Refutations 348
- Part 2; Universal Physics 396
- Physics, Book I 397
- Physics, Book II 415
- Physics, Book III 432
- Physics, Book IV 449
- Physics, Book V 481
- Physics, Book VI 496
- Physics, Book VII 519
- Physics, Book VIII 533
- On the Heavens, Book I 570
- On the Heavens, Book II 599
- On the Heavens, Book III 624
- On the Heavens, Book IV 640
- On Generation and Corruption, Book I 651
- On Generation and Corruption, Book II 685
- Meteorology, Book I 707
- Meteorology, Book II 733
- Meteorology, Book III 760
- Meteorology, Book IV 773
- Part 3; Human Physics 795
- On the Soul, Book I 796
- On the Soul, Book II 815
- On the Soul, Book III 840
- On Sense and the Sensible 861
- On Memory and Reminiscence 889
- On Sleep and Sleeplessness 899
- On Dreams 909
- On Prophesying by Dreams 918
- On Longevity and the Shortness of Life 923
- On Youth, Old Age, Life and Death, and Respiration 929
- Part 4; Animal Physics 952
- The History of Animals, Book I 953
- The History of Animals, Book II translated 977
- The History of Animals, Book III 1000
- The History of Animals, Book IV 1029
- The History of Animals, Book V 1056
- The History of Animals, Book VI 1094
- The History of Animals, Book VII 1135
- The History of Animals, Book VIII 1150
- The History of Animals, Book IX 1186
- On the Parts of Animals, Book I 1234
- On the Parts of Animals, Book II 1249
- On the Parts of Animals, Book III 1281
- On the Parts of Animals, Book IV 1311
- On the Motion of Animals 1351
- On the Gait of Animals 1363
- On the Generation of Animals, Book I 1381
- On the Generation of Animals, Book II 1412
- On the Generation of Animals, Book III 1444
- On the Generation of Animals, Book IV 1469
- On the Generation of Animals, Book V 1496
- Part 5; Metaphysics 1516
- Part 6; Ethics and Politics 1748
- Nicomachean Ethics, Book I 1749
- Nicomachean Ethics, Book II 1766
- Nicomachean Ethics, Book III 1779
- Nicomachean Ethics, Book IV 1799
- Nicomachean Ethics, Book V 1817
- Nicomachean Ethics, Book VI 1836
- Nicomachean Ethics, Book VII 1851
- Nicomachean Ethics, Book VIII 1872
- Nicomachean Ethics, Book IX 1890
- Nicomachean Ethics, Book X 1907
- Politics, Book I 1925
- Politics, Book II 1943
- Politics, Book III 1970
- Politics, Book IV 1997
- Politics, Book V 2023
- Politics, Book VI 2053
- Politics, Book VII 2065
- Politics, Book VIII 2091
- The Athenian Constitution 2102
- Part 7; Aesthetic Writings 2156