οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
P. and V. δεινός, φοβερός, φρικώδης (Dem. 644), V. δύσχιμος, ἔμφοβος.
suffer some dire calamity: P. ἀνήκεστόν τι πάσχειν.
dīrē, cruellement : Sen. Thyest. 315.
