οὐδὲν γάρ ἐστι κεκαλυμμένον ὃ οὐκ ἀποκαλυφθήσεται → there is nothing hidden that will not be revealed, there is nothing concealed that will not be revealed, there is nothing covered that shall not be revealed, there is nothing covered that won't be uncovered
cave: P. σπήλαιον, τό (Plato), Ar. and V. ἄντρον, τό, αὔλιον, τό, V. θαλάμαι, αἱ, P. and V. σῆραγξ, ἡ, σπέος, τό, σπεῖος (Epic), τό; see den, grotto.