οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
northern: Ar. and P. βόρειος, V. βορραῖος, πρόσβορρος.
the Arctic Regions, the North: P. and V. ἄρκτος, ἡ.
cold: P. and V. ψυχρός.