This is something very timely. But know that dogma, morality, is always on a path of development but always developing in the same direction. To use something that is clear — I think I’ve said it other times here — for the theological development of a moral or dogmatic issue, there is a rule that is very clear and illuminating. It’s more or less what [St.] Vincent of Lérins did in the 10th century. He says that true doctrine, in order to go forward, to develop, must not be quiet; it develops “ut annis consolidetur, dilatetur tempore, sublimetur aetate [that it may be consolidated by the years, dilated by time, elevated by age].” That is, it is consolidated over time; it expands and consolidates and becomes always more solid, but always progressing. …