γνοίη δ᾽ ἄν τις σαφέστατα περὶ τούτων ὡς ἀληθῶς ἐστιν οἷα δὴ νῦν εἶπον, ἐπὶ τὰς ἑκάστων κατὰ φύσιν ἀρχὰς καὶ γενέσεις καὶ μεταβολὰς ἐπιστήσας.
A couple of different translations:
No clearer proof of the truth of what I say could be obtained than by a careful observation of the natural origin, genesis, and decadence of these several forms of government.
The truth of what I have just said will be quite clear to anyone who pays due attention to such beginnings, origins, and changes as are in each case natural.
The overall sense is clear enough. One thing I thought was interesting was that ἐπιστήσας does not modify ἀρχὰς, γενέσεις, or μεταβολὰς, but rather is a complement of γνοίη. I hope others will agree. ![]()
Now to my real question: How do we unpack ὡς ἀληθῶς ἐστιν οἷα δὴ νῦν εἶπον? Is there an implied neuter plural subject pronoun co-referential with τούτων (like αὐτά or a demonstrative) that goes with the prediate ἐστιν οἷα inside this ὡς clause? I guess there must be. But I’m usually wrong, so I put it to you folks.