734 b 



ARISTOTLE 



Xeyeiv t] dcf)^ ov to andpfMa, ovOev Siacfyepei fj e;^et 

 T7]v KLV7)attV €v iavTO) rjv e/cetvo CKLvei. ivSex^rai 



10 Se ToSe fj,€v roSe Kivrjcrai,, rdSe 8e roSe, Kar etvat 

 oiov ra avTOfxaTa rojv davixarojv. €)(ovTa yap ttcos 

 VTTap)(ei SvvajjiLV ra pcopta rjpe[jiovvTa- Sv to TrpcoTov 

 OTav TL KLvr^arj tcov k^ojdev, €v6vs to exopi^vov 

 yiyvcTai^ ivepyeia. woTrep^ ovv^ iv tols avTop^aTois , 

 TpoTTov pi€v riva eKeXvo klv€l ovx arrTopLevov vvv 



15 ovdevog, dipapievov /xeWot, op^oicog [Se]* Kal (roY 

 dcf)' ov TO arrepp^a rj to TTOirjaav to aireppua, dijsd- 



p,€VOV pi€V TLVOS, OV^ aTTTOpieVOV 8 €TL- TpOTTOV Se 



Tiva -q ivovaa KLvqais, coaTrep 'q olKohopuqais ttjv 



OLKiaV.' 



"On pL€v ovv ecrrt tl o ttolcI, ov^ ovTCog 8e 



cos ToSe Tt, ovS' ivvrrdp^ov^ d)s TereAecr/xeVov to 



TTpuJTov, SrjXov. 



20 ITa)? Se TTore exaaTOV yiyverai, evTevdev Set 



Xa^elv, dpx'qv TTOirjaapievovs irpwTov piev otl oaa 



1 Kivetrai. coni. A.-W. ^ wcrre P. 



= KaBd-nep PS, om. Z. ^ * seel. A.-W._ ^ ^^^y Yec\i. 



® sic A.-W. : ot5Sev VTrapxov P : ovS' evvwdpxei vulg. 



" It will be noticed that the passage which follows sounds 

 surprisingly modern ; this is largely due to the great emphasis 

 which Aristotle here gives to the role played by the Efficient 

 (or Motive) Cause. — See however App. B § 5. 



* Cf. 741 b 9 ; and G. c\- C. II, chh. 10 and 11. At Mech. 

 848 a, there is a description of the mechanism by which these 

 may have been worked. 



" Kivelrai (" is set in movement ") has been suggested for 

 ylyverat (" comes to be "). But perhaps yiyveadai ivepyeia 

 is the inceptive form of etvat ivepyeia, as in the phrase 

 ovros ivepyeia, line 31 below. 

 150 



I 



