Rhet gre 1410b17-19ἔστιν γὰρ ἡ εἰκών, καθάπερ εἴρηται (18) πρότερον, μεταφορὰ διαφέρουσα προθέσει· διὸ ἧττον ἡδύ, (19) ὅτι μακροτέρως·
Rhys Roberts 1924 engThe similes of the poets do the same, and therefore, if they are good similes, give an effect of brilliance.
http://www2.hf.uio.no/common/apps/permlink/permlink.php?app=polyglotta&context=record&uid=d1c7ad08-1d51-11e7-ba66-0050569f23b2