From the Holy Father's address on September 21 to a meeting of the Centrist Democrat International political party (Vatican translation posted on Zenit):
"In effect, when human rights are violated, the dignity of the human person suffers; when justice is compromised, peace itself is jeopardized. On the other hand, justice is truly human only when the ethical and moral vision grounding it is centred on the human person and his inalienable dignity. . . .
"In this her mission, the Church is moved only by love for humanity and the desire to work together with all people of goodwill to build a world in which the dignity and inalienable rights of all persons will be safeguarded. For those of you who share a faith in Christ, the Church asks you to bear witness to that faith today with even greater courage and generosity. The integrity of Christians in political life is indeed more necessary than ever so that the "salt" of apostolic zeal does not lose its "flavour", and so that the "lamp" of Gospel values enlightening the daily work of Christians is not obscured by pragmatism or utilitarianism, suspicion or hate."
I have chosen excerpts here that have practical application to the day-to-day practice of my own career. In the same address, the Pope also spoke to parliamentarians about the crisis of the family, religious liberty, and terrorists who "often claim to act in God's name and harbour an inexcusable contempt for human life."