96 This is an immense task, which we cannot refuse and which I cannot carry out by myself. Could not the real but imperfect communion existing between us persuade Church leaders and their theologians to engage with me in a patient and fraternal dialogue on this subject, a dialogue in which, leaving useless controversies behind, we could listen to one another, keeping before us only the will of Christ for his Church and allowing ourselves to be deeply moved by his plea "that they may all be one ... so that the world may believe that you have sent me" ( Jn 17:21)?
Source: Ut Unum Sint (Vatican.va)