κακὸς μὲν γὰρ ἑκὼν οὐδείς → no one is voluntarily wicked, no one is voluntarily bad
P. and V. ἐγκέφαλος, ὁ, V. μυελός, ὁ.
Met., P. and V. νοῦς, ὁ, Ar. and V. φρήν, ἡ, or pl. (rare P.); see mind.