ἐν οἰκίᾳ τυφλῶν καὶ ὁ νυκτάλωψ ὀξυδερκής → even the day-blind is sharp-eyed in a blind house | among the blind, the one-eyed man is king
P. and V. ἀμαθής, ἄμουσος, Ar. and P. ἀπαίδευτος, P. ἀγράμματος.