Since anything which is produced is produced by something (and this I call the starting-point of the production), and from something (and let this be taken to be not the privation but the matter; for the meaning we attach to this has already been explained), and since something is produced (and this is either a sphere or a circle or whatever else it may chance to be), just as we do not make the substratum (the brass), so we do not make the sphere, except incidentally, because the brazen sphere is a sphere and we make the forme.
Sortuak direnak zerbaiten bidez sortzen direnez (generazioaren 25) abiapuntuaz ari naiz), eta zerbaitetik sortzen direnez (ez bedi "eza" "zerbaitzat" har, baizik eta materia, zehaztuta baitago jada zein zentzutan esaten dugun hau), eta zerbait izatera iristen direnez (esfera, zirkulua edo beste zer edo zer), azpigaia ekoizten ez duen bezala 30) brontzeak ere ez du esfera ekoizten, akzidentalki ez bada, esfera baita brontzezko esfera, eta hau bai ekoizten duela.