Contemplating the Formal Cause and Limits of Duration

Notes

1. §9.25.1ἀπὸ τοῦ ὑλικοῦ αὐτὸ περιγράψας — Meaning "having separated (or circumscribed) it from the material." The participle περιγράψας (aorist active participle of περιγράφω, masculine nominative singular) agrees with the subject of the main imperative θέασαι (second person singular), indicating prior action ("having separated... contemplate"). The pronoun αὐτό refers to the preceding τοῦ αἰτίου (the cause) or the concrete thing characterized by it.
2. §9.25.1τοῦτο τὸ ἰδίως ποιόν — Meaning "this specifically qualified thing." The phrase ἰδίως ποιόν is a Stoic philosophical term referring to the unique quality or state that individuates a particular thing, as opposed to a common quality (κοινῶς ποιόν). It functions as the grammatical subject of the infinitive ὑφίστασθαι ("to endure").