ARISTOTLE AND THE EARLIER PERIPATETICS vol.I by Eduard Zeller, B.F.C.Costelloe 1897

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PHYSICS 438
Aristotle obtains the notion of Time by a similar
recess. 1
Time cannot exist without motion, since it is
ily by the movement of thoughts that we perceive
et it is not motion, since motion itself is inseparable
om the object moved, and therefore is in one case
tster, in another slower ; whereas time is universally
le same, and its movement is always equally fast. It
illows that time stands in a special relation to motion,
ut is different from it. It is the measure or the number
f motion in respect to what is earlier and later. 2 The
nit of this number is the ' now.' Time is occasioned
y the movement of the ' now.' It is this that makes
me at once a continuous and a discrete magnitude
Dntinuous, in so far as ' now ' is the same in the presnt
moment as it was in the past ; discrete, in so far
s its being is different in each moment. 3
These notions of Time and Space involve the
innity
of the former and the finitude of the latter ;
it.
and
'& already know Aristotle's further reasons for this
istinction between them. 4
In like manner his concep-
;ationary as the centre, the 3 Phys. iv. o. 11, of. p. 220, a,
jcular motion affecting merely 5 : owe^s te Sii 6 xp^"os t$ vvv
s pari s, since only those change ral HnjpT\Tai Kara to vvv ; 2) 9, b, 9 :
leir position, so the highest tbairtp 7) nirnais eel &K\ti Kal ctM.17,
eavens move only in a certain Kal d XP^V0S ' ° 8' 'P-a *»* XpdVos
jspect, and are in space only Kara 6 avrSs ' to yap vvv rb ai/rb 8 ttot'
uyn/3efl7)«is, and in so far as their ?jv rb 5" elvat airy erepov. Ilrid.
arts move and are in space {lie c 1 3, imit. : to Se vvv #