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2
We can best obtain a scientific view of the nature of the dream and the
manner in which it originates by regarding it in the light of the circumstances
attending sleep. The objects of sense-perception corresponding to each
sensory organ produce sense-perception in us, and the affection due to their
operation is present in the organs of sense not only when the perceptions are
actualized, but even when they have departed.
What happens in these cases may be compared with what happens in the
case of projectiles moving in space. For in the case of these the movement
continues even when that which set up the movement is no longer in contact
[with the things that are moved]. For that which set them in motion moves a
certain portion of air, and this, in turn, being moved excites motion in another
portion; and so, accordingly, it is in this way that [the bodies], whether in air
or in liquids, continue moving, until they come to a standstill.
This we must likewise assume to happen in the case of qualitative change;
for that part which [for example] has been heated by something hot, heats [in
turn] the part next to it, and this propagates the affection continuously
onwards until the process has come round to its oint of origination. This must
also happen in the organ wherein the exercise of sense-perception takes place,
since sense-perception, as realized in actual perceiving, is a mode of
qualitative change. This explains why the affection continues in the sensory
organs, both in their deeper and in their more superficial parts, not merely
while they are actually engaged in perceiving, but even after they have ceased
to do so. That they do this, indeed, is obvious in cases where we continue for
some time engaged in a particular form of perception, for then, when we shift
the scene of our perceptive activity, the previous affection remains; for
instance, when we have turned our gaze from sunlight into darkness. For the
result of this is that one sees nothing, owing to the excited by the light still
subsisting in our eyes. Also, when we have looked steadily for a long while at
one colour, e.g. at white or green, that to which we next transfer our gaze
appears to be of the same colour. Again if, after having looked at the sun or
some other brilliant object, we close the eyes, then, if we watch carefully, it
appears in a right line with the direction of vision (whatever this may be), at
first in its own colour; then it changes to crimson, next to purple, until it
becomes black and disappears. And also when persons turn away from
looking at objects in motion, e.g. rivers, and especially those which flow very
911
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