ἆρά γε λόγον ἔχει δυοῖν ἀρχαῖν, ὑλικῆς τε καὶ δραστικῆς → does it in fact have the function of two principles, the material and the active?
gén. de οὗτος.
genitive case singular masculine or neuter of οὗτος; of (from or concerning) this (person or thing): here(-by), him, it, + such manner of, that, thence(-forth), thereabout, this, thus.