οἷον πνεῦμα ἤ τις ἠχὼ ἀπὸ λείων τε καὶ στερεῶν ἁλλομένη πάλιν ὅθεν ὡρμήθη φέρεται, οὕτω τὸ τοῦ κάλλους ῥεῦμα πάλιν εἰς τὸν καλὸν διὰ τῶν ὀμμάτων ἰόν - Plato

If anyone comes to the gates of poetry and expects to become an adequate poet by acquiring expert knowledge of the subject without the Muses' madness, he will fail, and his self-controlled verses will be eclipsed by the poetry of men who have been driven out of their minds.

not exact, but: the two most important questions are; who will teach the children? what they teach them?

The difficulty, my friends, is not in avoiding death, but in avoiding unrighteousness; for that runs faster than death.