ὁ μὴ πεπλευκὼς οὐδὲν ἑόρακεν κακόν → anyone who hasn't sailed has never seen trouble
P. ἀδυναμία, ἡ, μοχθηρία, ἡ, P. and V. φαυλότης, ἡ (Euripides, Fragment).