11. It remains for Us now to address the Catholics in a more special manner, and We do so in order that they should co-operate with Us in realizing what We have at heart. Christian charity bids each one labour, according to his opportunities, for the salvation of his fellow men. We therefore call upon them first of all constantly to offer prayers and supplications to God, Who alone can give the necessary light to the minds of men, and dispose their wills as He pleases. And furthermore, as example is most powerful, let them show themselves worthy of the truth which through Divine mercy they possess, and let them recommend the faith which they hold by edifying and stainless lives. "So let your light shine before men, that they may see your good works" (Matth. v., 16). Let them at the same time distinguish themselves by the practice of virtue in public life, so that it should be more and more clearly shown that Catholicism cannot be said, without calumny, to run counter to the interests of the State: but that, on the contrary, nothing else contributes so much to the honourable and successful discharge of social duties.