The Church herself is, by her…UNCONQUERABLE STABILITY…a great and perpetual motive of credibility – First Vatican Council, Dei Filius Ch. 3 The Catholic Controversy – Part II. Art. III. C. XI. Of the Universality or Catholicity of the Church. 3rd Mark. (St. Francis de Sales, Universal Doctor of Charity) The Catholic Controversy – Part II. Art. III. C. XII. Catholicity of the Church (Cont.). The True Church Must Be Ancient. The Catholic Church is Most Ancient, the Pretended, Quite New. (St. Francis de Sales, Universal Doctor of Charity) The Catholic Controversy – Part II. Art. III. C. XIII. Catholicity of the Church (Cont.) The True Church Must Be Perpetual. Ours is Perpetual, the Pretended is Not. (St. Francis de Sales, Universal Doctor of Charity) The Catholic Controversy – Part II. Art. III. C. XIV. Catholicity of the Church (Cont.). The True Church Ought to be Universal in Places and Persons. The Catholic Church Is Thus Universal, the Pretended is Not. (St. Francis de Sales, Universal Doctor of Charity)