Kitap 1
3
and if there was any deficiency anywhere, they made haste to supply it, in order to make their system a connected whole. For example, since the decad is considered to be a complete thing and to comprise the whole essential nature of the numerical system, they assert that the bodies which revolve in the heavens are ten; and there being only nineEarth, sun, moon, five planets, and the sphere of the fixed stars. that are visible, they make the antichthoni.e. counter-earth; a planet revolving round the central fire in such a way as to be always in opposition to the earth. the tenth.
4
We have treated this subject in greater detail elsewhereIn the lost work On the Pythagoreans; but cf. Aristot. De Caelo 2.13.; but the object of our present review is to discover from these thinkers too what causes they assume and how these coincide with our list of causes.