οὐ γὰρ ᾤετο οἷόν τε εἶναι μὴ αὐτόν τινα ὄντα οἷον δεῖ ἄλλους παρορμᾶν ἐπὶ τὰ καλὰ καὶ ἀγαθὰ ἔργα.
The translation is: For he thought that it was not possible for him to incite others to good and noble deeds, if he were not himself such as he ought to be.
The correct translation: for he thought it was not possible for someone to incite others to good and noble deeds if he were not himself …