Ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
pĕr-ingĕnĭōsus: a, um, adj.,
I of good natural abilities, very clever: homines, Cic. Brut. 24, 92.
pĕringĕnĭōsus, a, um, très doué naturellement : Cic. Br. 92.