From the first centuries A.D. and throughout the history of the Christian church, one fundamental question has continually arisen: What is the proper relationship between the magistri, or theological teachers, and the magisterium, the authority which decides what is the true teaching of the church? This and further questions exercised Visser 't Hooft greatly, and this book, published in celebration of his birth one hundred years previously, emerges from an unfinished manuscript. His convictions - that the testimony of scripture is normative and that theology is dialogical - come through clearly.