"The concept which assumes that everything in the Church is irrevocably set for all times appears to me to be a false one. It would be naive to disregard that the Church has a history; the Church is a human institution and like all things human, was destined to change and evolve; likewise, its development takes place often in the form of struggles. Most of the definitions of dogma are conclusive results of preceding intellectual conflicts lasting for decades and even centuries. The same is true of ecclesiastical law, liturgical forms — especially all objective forms reflecting our spiritual life."