10. For the twelfth century we have two witnesses, both Saints; one a confessor, the other a martyr, and both our own: S. Thomas of Canterbury, and S. Anselm.
S. Thomas writes to the Bishop of Hereford: 'The fountain of Paradise is one, but divided into many streams, that it may water the whole earth. Who doubts that the Church of Rome is the head of all the Churches, and the fountain of Catholic truth? Who is ignorant that the keys of the kingdom of heaven were entrusted to Peter? Does not the structure of the whole Church rise from the faith and doctrine of Peter? … Whosoever he be that waters or plants, God gives increase to none, save to him who has planted in the faith of Peter, and rests in his doctrine.' Again he says of the Apostolic See: ' From this none but infidels, or heretics, or schismatics withdrew their faith and obedience.'[1]
11. S. Anselm, in dedicating his book on the Holy Trinity to the Pope, writes: 'Forasmuch as the providence of God has chosen your Holiness, to commit to your custody the life and faith of Christians, and the government of His Church, to no other can reference be more rightly made, if so be anything contrary to the Catholic faith arise in the Church, that it may be corrected by his authority; nor to any other can anything which may be written against such errors be more safely submitted, that by his prudence it may be examined.'[2] Again: 'Let those who
