But, without infringing on the ordinary power of the bishops, the pope, as head of the episcopate, possesses in himself the same powers as the episcopate united with him. It is true that the disciplinary and legislative power of the popes has not always, in the course of centuries, been exercised in the same manner and to the same extent, but in proportion as the administration became centralized, their direct intervention in legislation became more and more marked; and so the sovereign pontiff is the most fruitful source of canon law; he can abrogate the laws made by his predecessors or by Ecumenical councils; he can legislate for the whole church or for a part thereof, a country or a given body of individuals; if he is morally bound to take advice and to follow the dictates of prudence, ***he is not legally obliged to obtain the consent of any other person or persons, or to observe any particular form; his power is limited only by Divine law, natural and positive, dogmatic and moral. Furthermore, he is, so to say, the living law, for he is considered as having all law in the treasury of his heart ***(“in scrinio pectoris”; Boniface VIII. c. i, “De Constit.” in VI).