Ut Unum Sint §47

⁴⁷ Dialogue does not extend exclusively to matters of doctrine but engages the whole person; it is also a dialogue of love. The Council has stated: "Catholics must joyfully acknowledge and esteem the truly Christian endowments from our common heritage which are to be found among our separated brothers and sisters. It is right and salutary to recognize the riches of Christ and virtuous works in the lives of others who are bearing witness to Christ, sometimes even to the shedding of their blood. For God is always wonderful in his works and worthy of admiration".