"Cardinal Ratzinger offers us what he calls a 'primer of Catholic ecclesiology.' As a true theologian, he clarifies the nature of Church, bishop and priest, basing his remarks on Scripture and Tradition. The book offers penetrating insights into the Church from a profound thinker. This is Catholic theology at its best and as it should be." 
— Fr. Kenneth Baker, S.J., Editor, Homiletic & Pastoral Review

"Cardinal Ratzinger guides us through today's confusion about the faith back to the core from which the life of the Church unfolds: communion. At the end of the journey, we not only have a better grasp of the controverted issues of the day, but also a renewed understanding of the central mystery of the Church and a powerful encouragement to the theological and spiritual renewal envisaged by the Second Vatican Council."
— David Schindler, Editor, Communio

"This is a goldmine of insights which brings out the development of Catholic doctrine in our day without surrendering one iota of the deposit of faith entrusted to the Church by her Divine Founder."
— Fr. John Hardon, S.J., Editor, The Treasury of Catholic Wisdom