οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
lābēcŭla: ae, f. dim. 2. labes,I a slight stain or disgrace, a blemish; opprobrium: alicui aspergere labeculam, Cic. Vatin. 17, 41.
lābēcŭla,¹⁶ æ, f. (labes), légère tache (flétrissure) : Cic. Vat. 41.