"The first form of witness is the very life of the missionary, of the Christian family, and of the ecclesial community, which reveal a new way of living. The missionary who, despite all his or her human limitations and defects, lives a simple life, taking Christ as the model, is a sign of God and of transcendent realities. But, everyone in the Church, striving to imitate the Divine Master, can and must bear this kind of witness. In many cases this is the only possible way of being a missionary."
John Paul the II in the encyclical Mission of the Redeemer.
