34 On this occasion We cannot refrain from addressing in a special way through this Encyclical Letter all the beloved children of Poland, and, above all, those Bishops who for the sake of Christ have suffered pain and affliction. Act boldly, but with that Christian promptness of soul which goes hand in hand with prudence, knowledge, and wisdom. Keep Catholic faith and unity. Let faith be the cord that girds your loins; let it be renowned throughout the whole world; may it be for you and for everyone "the victory that overcomes the world." But do this "looking toward the author and finisher of faith, Jesus, who for the joy set before him, endured a cross, despising shame, and sits at the right hand of the throne of God."
Source: Invicti Athletae (Vatican.va)