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Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
kunsterfahren, artis (od. artium) peritus od. sciens. Vgl. »Kunstkenner«. – Kunsterfahrenheit, artis od. artium peritia od. scientia.