-The indivisibility of substance may be more easily understood as follows. The nature of substance can only be conceived as infinite, and by a part of substance, nothing else can be understood than finite substance, which (by Prop. viii) involves a manifest contradiction.
Substantzia bat zatiezina izatea errazkiago ulertzen da substantziaren izaera mugagabea baizik ez dela pentsatzen ahal gogoratuz bakarrik eta, bestalde, substantzia baten zatia ezin da deitu substantzia mugatu bat baizik, baina hori (8. Prop. arab.) kontraesan nabaria besterik ez da.