"Christ summons the Church, as she goes her pilgrim way, to that continual reformation of which she always has need, insofar as she is an institution of men here on earth. Consequently, if, in various times and circumstances, there have been deficiencies in moral conduct or in Church discipline, or even in the way that Church teaching has been formulated—to be carefully distinguished from the deposit of faith itself—these should be set right at the opportune moment and in the proper way"
(Decree on Ecumenism, 6, Austin Flannery translation).
