“There is no contradiction between the two editions of the Roman Missal. In the history of liturgy growth and progress are found, but not a rupture. What was sacred for our ancestors remains sacred and great for us and it is not permissible that it be suddenly prohibited altogether, nor that it be judged as clearly harmful.” — Benedict XVI
Epistola ad Episcopos ad producendas Litteras Apostolicas motu proprio datas, de Usu Liturgiae Romanae Instaurationi anni 1970 praecedentis, AAS 99 (2007) 798.
Traditionalists and Pope Francis, New Oxford Review.