Without being either absolute, or perfect in itself, then, dogma is absolutely necessary to the propagation and edification of the religious life. The Church has a pedagogic mission that could not be fulfilled without it. It bears souls, nourishes them and brings them up. Its role is that of a mother. In that educative mission, we may add, the mother finds the principle and aim of her authority, the reason and the limit of her tutelage. In this sense, dogma is never without authority. But this same pedagogic authority is neither absolute nor eternal; it has a double limit, in the nature of the pupil's soul, which it ought to respect, and in the end it would attain, the making of free men, adult Christians, sons of God in the image of Christ and in immediate relationship to the Father. If dogma is the heritage of the past transmitted by the Church, it is the children's duty first to receive it, and then to add to its value by continually reforming it, since that is the only way to keep it alive and to render it truly useful and fruitful in the moral development of humanity. It is therefore to this idea of necessary dogma, but of dogma necessarily historical and changing, that we must henceforth accustom ourselves; and we shall most easily habituate ourselves to it by tracing its evolution in the past. CHAPTER II THE LIFE OF DOGMAS AND THEIR HISTORICAL EVOLUTION 1. _Three Prejudices_ I here encounter three prejudices which are, I think, the most inveterate in the world. The first is that dogmas are immutable; the second, that they die fatally the moment they are touched by criticism; the third, that they form the essence of religion, which rises or falls with them. I wish to show that dogmas have neither this pretended immobility nor this delicate fragility; that they live by an inner life extraordinarily resistant and fecund, and that the criticism of dogmas, so far from injuring the Christian religion, frees it from the chains of the past and permits it to manifest its marvellous gift of rejuvenescence and adaptation to circumstances.