σκληρόν σοι πρὸς κέντρα λακτίζειν → it is hard for thee to kick against the pricks, it is hard for you to kick against the goads
SourceGreek (Liddell-Scott)
Ἐρυμάνθιος: -ον, ἀνήκων εἰς τὸ ὄρος Ἐρύμανθον, Ἐρυμάνθιον κάπρον ἔκτανε (Ἡρακλῆς) Ἀνθολ. Πλαν. σ. 252. 92.