τὸ δὲ ποιεῖν ἄνευ νοῦ ἃ δοκεῖ καὶ σὺ ὁμολογεῖς κακὸν εἶναι: ἢ οὔ → but doing what one thinks fit without intelligence is—as you yourself admit, do you not?—an evil
skilled: P. and V. ἔμπειρος, ἐπιστήμων, V. τρίβων.
practised in: P. and V. ἔμπειρος (gen.), ἐπιστήμων (gen.), ἐντριβής (dat.), Ar. and V. τρίβων (acc. or gen.); see skilled in.