Newman's influence on the thinking of the Catholic Church

Newman is one of very few who are not canonized saints to be quoted in the Cathechism. Aside from a few of the early ecclesiastical writers (Tertullian and Origen, for example) he is probably the most quoted of all such authorities. This fact certainly bears witness to the profound and positive influence he has had on theological development in the Church in the twentieth century.

Newman in the Catechism page