οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
liable to death: P. and V. θνητός (Plato).
weak: P. and V. ἀσθενής.
