§28.10.1ὅτι ὁ Περσεὺς ἐπταικὼς τοῖς ὅλοις ἐπὶ τῷ εἰσελθεῖν Ῥωμαίους εἰς Μακεδονίαν τῷ Ἱππίᾳ ἐπετίμα.
Perseus, having suffered a decisive setback because the Romans had entered Macedonia, began to blame Hippias.
§28.10.2ἀλλά μοι δοκεῖ τὸ μὲν ἐπιτιμῆσαι τοῖς ἄλλοις εἶναι ῥᾴδιον καὶ συνιδεῖν τὰς τῶν πέλας ἁμαρτίας, τὸ δʼ αὐτὸν πράττειν τὰ δυνατὰ καὶ γνῶναι τὰ καθʼ αὑτὸν πάντων δυσχερέστατον.
But it seems to me that while it is easy to blame others and to see the errors of one's neighbors, to do what is in one's own power and to know one's own affairs is the most difficult of all things.
ὃ καὶ περὶ τὸν Περσέα συνέβη γενέσθαι. —
And this is precisely what happened in the case of Perseus. —