"For Congar, Tradition is a real, living self-communication of God. Its content is the whole Christian reality disclosed in Jesus Christ. It is transmitted not only by written and spoken words, but equally by prayer, sacramental worship and participation in the Church's life. When I have taught on Tradition to seminarians and graduate students I have regularly used this book. Congar is perhaps the greatest master of the theology of Tradition who has ever lived."
—Cardinal Avery Dulles, S.J.