Francis celebrated vespers today evening in a Rome basilica along with Anglican, Orthodox and other church leaders to cap an annual week of prayer for unity of Christians.
He told the church leaders that "our shared commitment to proclaiming the Gospel enables us to overcome proselytism and competition in all their forms."
Francis said getting to know "those who are different from ourselves can make us grow." He also cautioned about "subtle theoretical discussions in which each side tries to convince the other."